Interplay of Crosslinking Structures and Segmental Dynamics in Solid-Liquid Elastomers

Hao Wang; Wan-Su Peng; Qi Wu; Yan Zhao; Shi-Tai Wang; Yi Yang; Jin-Rong Wu; Xiao-Liang Wang; Rong-Chun Zhang

doi:10.1007/s10118-022-2742-0

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Interplay of Crosslinking Structures and Segmental Dynamics in Solid-Liquid Elastomers

RESEARCH ARTICLE | Updated：2022-09-23

- Interplay of Crosslinking Structures and Segmental Dynamics in Solid-Liquid Elastomers
- Interplay of Crosslinking Structures and Segmental Dynamics in Solid-Liquid Elastomers
- Chinese Journal of Polymer Science 2022年40卷第10期页码：1297-1306
- Affiliations：
  
  a.South China Advanced Institute for Soft Matter Science and Technology (AISMST), School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
  b.Key Laboratory of High-Performance Polymer Materials and Technology of Ministry of Education, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
  c.State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
  d.Suzhou Niumag Analytical Instrument Corporation, Suzhou 215151, China
  e.Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou 510640, China
- Author bio：
  
  wujinrong@scu.edu.cn (J.R.W.)
  wangxiaoliang@nju.edu.cn (X.L.W.)
  zhangcr@scut.edu.cn (R.C.Z.)
- Funds：
  
  RZ acknowledges the financial supports by the R&D program of Guangzhou (No. 202102020941), the National Natural Science Foundation of China (Nos. 21973031 and 22173046), and the Natural Science Foundation of Guangdong Province, China (No. 2019A1515011140).;Electronic supplementary information (ESI) is available free of charge in the online version of this article at http://doi.org/10.1007/s10118-022-2742-0.
- DOI：10.1007/s10118-022-2742-0
  中图分类号：
- 收稿：2022-01-27，
  
  修回：2022-3-6，
  
  录用：2022-3-24，
  
  网络首发：2022-05-27，
  
  纸质出版：2022-10-01
- Accepted：
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Wang, H.; Peng, W. S.; Wu, Q.; Zhao, Y.; Wang, S. T.; Yang, Y.; Wu, J. R.; Wang, X. L.; Zhang, R. C. Interplay of crosslinking structures and segmental dynamics in solid-liquid elastomers. Chinese J. Polym. Sci. 2022, 40, 1297–1306

Hao Wang, Wan-Su Peng, Qi Wu, et al. Interplay of Crosslinking Structures and Segmental Dynamics in Solid-Liquid Elastomers[J]. Chinese Journal of Polymer Science, 2022, 40(10): 1297-1306.
Wang, H.; Peng, W. S.; Wu, Q.; Zhao, Y.; Wang, S. T.; Yang, Y.; Wu, J. R.; Wang, X. L.; Zhang, R. C. Interplay of crosslinking structures and segmental dynamics in solid-liquid elastomers. Chinese J. Polym. Sci. 2022, 40, 1297–1306 DOI： 10.1007/s10118-022-2742-0.

Hao Wang, Wan-Su Peng, Qi Wu, et al. Interplay of Crosslinking Structures and Segmental Dynamics in Solid-Liquid Elastomers[J]. Chinese Journal of Polymer Science, 2022, 40(10): 1297-1306. DOI： 10.1007/s10118-022-2742-0.

摘要

Using a combination of rheology

proton multiple-quantum NMR and fast-field-cycling (FFC) NMR techniques

we elucidate the interplay of crosslinking structures and hierarchical segmental dynamics in the solid-liquid elastomers with variable content of dynamic boron-oxygen dative bonds

enabling the establishment of structure-dynamics-property relationship.

Abstract

There have been significant interests in recent years for incorporating dynamic bonds into polymer materials for achieving multiple functionalities

such as self-healing

recycling

stimuli-responsiveness

and so on. Nevertheless

the impact of dynamic bonds on the polymer dynamics is actually less explored. In this study

we investigate a self-healing solid-liquid elastomer (SLE)

which is a dual-crosslinked network made by coupling a permanently crosslinked polydimethylsiloxane (PDMS) network with polyborosiloxane (PBS)

via

abundant dynamic boron/oxygen dative bonds. Proton double-quantum (DQ) NMR reveals that the crosslinking degree is reduced while the structural heterogeneity of network is enhanced with increasing PBS content

i.e

increasing the content of dynamic boron/oxygen dative bonds. Rheological experiments clearly reveal two chain relaxation modes in the SLE samples with a characteristic relaxation time of around 2.1 s and 11.8 s

corresponding to the relaxation of coupled PBS and PDMS chains

respectively. The master curves obtained from variable-temperature frequency-dependent rheological experiments also reveal enhanced heterogeneity of chain relaxation with increasing PBS content. Finally

the impact of boron/oxygen dative bonds on the Rouse dynamics is further revealed by fast-field-cycling (FFC) NMR experiments

where the spin-lattice relaxation rate (

) of all SLE samples follows the same power law of

$${R}_{1} \left(\omega \right)\propto {\omega }^{-0.33}$$

http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=34728838&type=

. Nevertheless

the incorporation of PBS did slightly increase the energy barrier of Rouse dynamics. Our study well demonstrates a combined use of rheology and solid-state NMR spectroscopy can provide piercing insights into the interplay of crosslinking structures and dynamics of polymer materials.

关键词

Keywords

references

Montarnal, D.; Capelot, M.; Tournilhac, F.; Leibler, L . Silica-like malleable materials from permanent organic networks . Science , 2011 . 334 965 - 968 . DOI: 10.1126/science.1212648 http://doi.org/10.1126/science.1212648 .

Chakma, P.; Konkolewicz, D . Dynamic covalent bonds in polymeric materials . Angew. Chem. Int. Ed. , 2019 . 58 9682 - 9695 . DOI: 10.1002/anie.201813525 http://doi.org/10.1002/anie.201813525 .

Wojtecki, R. J.; Meador, M. A.; Rowan, S. J . Using the dynamic bond to access macroscopically responsive structurally dynamic polymers . Nat. Mater. , 2011 . 10 14 - 27 . DOI: 10.1038/nmat2891 http://doi.org/10.1038/nmat2891 .

Zheng, N.; Xu, Y.; Zhao, Q.; Xie, T . Dynamic covalent polymer networks: a molecular platform for designing functions beyond chemical recycling and self-healing . Chem. Rev. , 2021 . 121 1716 - 1745 . DOI: 10.1021/acs.chemrev.0c00938 http://doi.org/10.1021/acs.chemrev.0c00938 .

Denissen, W.; Winne, J. M.; Du Prez, F. E . Vitrimers: permanent organic networks with glass-like fluidity . Chem. Sci. , 2016 . 7 30 - 38 . DOI: 10.1039/C5SC02223A http://doi.org/10.1039/C5SC02223A .

Zhang, Z. P.; Rong, M. Z.; Zhang, M. Q . Polymer engineering based on reversible covalent chemistry: a promising innovative pathway towards new materials and new functionalities . Prog. Polym. Sci. , 2018 . 80 39 - 93 . DOI: 10.1016/j.progpolymsci.2018.03.002 http://doi.org/10.1016/j.progpolymsci.2018.03.002 .

Röttger, M.; Domenech, T.; van der Weegen, R.; Breuillac, A.; Nicolaÿ, R.; Leibler, L . High-performance vitrimers from commodity thermoplastics through dioxaborolane metathesis . Science , 2017 . 356 62 - 65 . DOI: 10.1126/science.aah5281 http://doi.org/10.1126/science.aah5281 .

Li, J.; Viveros, J. A.; Wrue, M. H.; Anthamatten, M . Shape-memory effects in polymer networks containing reversibly associating side-groups . Adv. Mater. , 2007 . 19 2851 - 2855 . DOI: 10.1002/adma.200602260 http://doi.org/10.1002/adma.200602260 .

Zheng, N.; Fang, Z.; Zou, W.; Zhao, Q.; Xie, T . Thermoset shape-memory polyurethane with intrinsic plasticity enabled by transcarbamoylation . Angew. Chem. Int. Ed. , 2016 . 55 11421 - 11425 . DOI: 10.1002/anie.201602847 http://doi.org/10.1002/anie.201602847 .

Yu, S.; Zhang, R.; Wu, Q.; Chen, T.; Sun, P . Bio-inspired high-performance and recyclable cross-linked polymers . Adv. Mater. , 2013 . 25 4912 - 4917 . DOI: 10.1002/adma.201301513 http://doi.org/10.1002/adma.201301513 .

Sun, H.; Kabb, C. P.; Dai, Y.; Hill, M. R.; Ghiviriga, I.; Bapat, A. P.; Sumerlin, B. S . Macromolecular metamorphosis via stimulus-induced transformations of polymer architecture . Nat. Chem. , 2017 . 9 817 - 823 . DOI: 10.1038/nchem.2730 http://doi.org/10.1038/nchem.2730 .

Wu, H. T.; Jin, B. Q.; Wang, H.; Wu, W. Q.; Cao, Z. X.; Yuan, Z. Y.; Huang, Y.; Li, W. H.; Huang, G. S.; Liao, L. S.; Wu, J. R . A robust self-healing polyurethane elastomer enabled by tuning the molecular mobility and phase morphology through disulfide bonds . Chinese J. Polym. Sci. , 2021 . 39 1299 - 1309 . DOI: 10.1007/s10118-021-2607-y http://doi.org/10.1007/s10118-021-2607-y .

Li, M.; Zhang, R.; Li, X.; Wu, Q.; Chen, T.; Sun, P . High-performance recyclable cross-linked polyurethane with orthogonal dynamic bonds: The molecular design, microstructures, and macroscopic properties . Polymer , 2018 . 148 127 - 137 . DOI: 10.1016/j.polymer.2018.06.024 http://doi.org/10.1016/j.polymer.2018.06.024 .

Zhang, C.; Yang, Z.; Duong, N . T.; Li, X.; Nishiyama, Y.; Wu, Q.; Zhang, R.; Sun, P. Using dynamic bonds to enhance the mechanical performance: from microscopic molecular interactions to macroscopic properties . Macromolecules , 2019 . 52 5014 - 5025 . DOI: 10.1021/acs.macromol.9b00503 http://doi.org/10.1021/acs.macromol.9b00503 .

Tan, C. S. Y.; Agmon, G.; Liu, J.; Hoogland, D.; Janeček, E. R.; Appel, E. A.; Scherman, O. A . Distinguishing relaxation dynamics in transiently crosslinked polymeric networks . Polym. Chem. , 2017 . 8 5336 - 5343 . DOI: 10.1039/C7PY00574A http://doi.org/10.1039/C7PY00574A .

Chen, L.; Zhang, L.; Griffin, P. J.; Rowan, S. J . Impact of dynamic bond concentration on the viscoelastic and mechanical properties of dynamic poly(alkylurea- co -urethane) networks . Macro. Chem. Phys. , 2020 . 221 1900440 DOI: 10.1002/macp.201900440 http://doi.org/10.1002/macp.201900440 .

Rossow, T.; Habicht, A.; Seiffert, S . Relaxation and dynamics in transient polymer model networks . Macromolecules , 2014 . 47 6473 - 6482 . DOI: 10.1021/ma5013144 http://doi.org/10.1021/ma5013144 .

Chen, Q.; Huang, C.; Weiss, R.; Colby, R. H . Viscoelasticity of reversible gelation for ionomers . Macromolecules , 2015 . 48 1221 - 1230 . DOI: 10.1021/ma502280g http://doi.org/10.1021/ma502280g .

Zhuge, F.; Hawke, L. G.; Fustin, C. A.; Gohy, J. F.; Van Ruymbeke, E . Decoding the linear viscoelastic properties of model telechelic metallo-supramolecular polymers . J. Rheol. , 2017 . 61 1245 - 1262 . DOI: 10.1122/1.4997593 http://doi.org/10.1122/1.4997593 .

Jiang, N.; Zhang, H.; Tang, P.; Yang, Y . Linear viscoelasticity of associative polymers: sticky rouse model and the role of bridges . Macromolecules , 2020 . 53 3438 - 3451 . DOI: 10.1021/acs.macromol.0c00312 http://doi.org/10.1021/acs.macromol.0c00312 .

Porath, L. E.; Evans, C. M . Importance of broad temperature windows and multiple rheological approaches for probing viscoelasticity and entropic elasticity in vitrimers . Macromolecules , 2021 . 54 4782 - 4791 . DOI: 10.1021/acs.macromol.0c02800 http://doi.org/10.1021/acs.macromol.0c02800 .

Ricarte, R . G.; Tournilhac, F.; Cloître, M.; Leibler, L. Linear viscoelasticity and flow of self-assembled vitrimers: the case of a polyethylene/dioxaborolane system . Macromolecules , 2020 . 53 1852 - 1866 . DOI: 10.1021/acs.macromol.9b02415 http://doi.org/10.1021/acs.macromol.9b02415 .

Snijkers, F.; Pasquino, R.; Maffezzoli, A . Curing and viscoelasticity of vitrimers . Soft Matter , 2017 . 13 258 - 268 . DOI: 10.1039/C6SM00707D http://doi.org/10.1039/C6SM00707D .

Cao, X. Z.; Forest, M. G . Rheological tuning of entangled polymer networks by transient cross-links . J. Phys. Chem. B , 2019 . 123 974 - 982 . DOI: 10.1002/pol.20210411 http://doi.org/10.1002/pol.20210411 .

Perego, A.; Khabaz, F . Effect of bond exchange rate on dynamics and mechanics of vitrimers . J. Polym. Sci. , 2021 . 59 2590 - 2602 . .

Ricarte, R. G.; Shanbhag, S . Unentangled vitrimer melts: interplay between chain relaxation and cross-link exchange controls linear rheology . Macromolecules , 2021 . 54 3304 - 3320 . DOI: 10.1021/acs.macromol.0c02530 http://doi.org/10.1021/acs.macromol.0c02530 .

Lewis, C . L.; Stewart, K.; Anthamatten, M. The influence of hydrogen bonding side-groups on viscoelastic behavior of linear and network polymers . Macromolecules , 2014 . 47 729 - 740 . DOI: 10.1021/ma402368s http://doi.org/10.1021/ma402368s .

Yan, T.; Schröter, K.; Herbst, F.; Binder, W. H.; Thurn-Albrecht, T . Unveiling the molecular mechanism of self-healing in a telechelic, supramolecular polymer network . Sci. Rep. , 2016 . 6 1 - 8 . DOI: 10.1038/s41598-016-0001-8 http://doi.org/10.1038/s41598-016-0001-8 .

Yan, T.; Schröter, K.; Herbst, F.; Binder, W. H.; Thurn-Albrecht, T . What controls the structure and the linear and nonlinear rheological properties of dense, dynamic supramolecular polymer networks . Macromolecules , 2017 . 50 2973 - 2985 . DOI: 10.1021/acs.macromol.6b02507 http://doi.org/10.1021/acs.macromol.6b02507 .

Wu, S.; Yang, H.; Xu, W. S.; Chen, Q . Thermodynamics and reaction kinetics of symmetric vitrimers based on dioxaborolane metathesis . Macromolecules , 2021 . 54 6799 - 6809 . DOI: 10.1021/acs.macromol.1c00697 http://doi.org/10.1021/acs.macromol.1c00697 .

Wu, S.; Yang, H.; Huang, S.; Chen, Q . Relationship between reaction kinetics and chain dynamics of vitrimers based on dioxaborolane metathesis . Macromolecules , 2020 . 53 1180 - 1190 . DOI: 10.1021/acs.macromol.9b02162 http://doi.org/10.1021/acs.macromol.9b02162 .

Foster, E. M.; Lensmeyer, E. E.; Zhang, B.; Chakma, P.; Flum, J. A.; Via, J. J.; Sparks, J. L.; Konkolewicz, D . Effect of polymer network architecture, enhancing soft materials using orthogonal dynamic bonds in an interpenetrating network . ACS Macro Lett. , 2017 . 495 - 499 . .

Neal, J . A.; Mozhdehi, D.; Guan, Z. Enhancing mechanical performance of a covalent self-healing material by sacrificial noncovalent bonds . J. Am. Chem. Soc. , 2015 . 137 4846 - 4850 . DOI: 10.1021/jacs.5b01601 http://doi.org/10.1021/jacs.5b01601 .

Nair, K . P.; Breedveld, V.; Weck, M. Multiresponsive reversible polymer networks based on hydrogen bonding and metal coordination . Macromolecules , 2011 . 44 3346 - 3357 . DOI: 10.1021/ma102462y http://doi.org/10.1021/ma102462y .

Wilson, A.; Gasparini, G.; Matile, S . Functional systems with orthogonal dynamic covalent bonds . Chem. Soc. Rev. , 2014 . 43 1948 - 1962 . DOI: 10.1039/C3CS60342C http://doi.org/10.1039/C3CS60342C .

Yang, H.; Ghiassinejad, S.; van Ruymbeke, E.; Fustin, C. A . Tunable interpenetrating polymer network hydrogels based on dynamic covalent bonds and metal-ligand bonds . Macromolecules , 2020 . 53 6956 - 6967 . DOI: 10.1021/acs.macromol.0c00494 http://doi.org/10.1021/acs.macromol.0c00494 .

Yang, Z.; Wang, F.; Zhang, C.; Li, J.; Zhang, R.; Wu, Q.; Chen, T.; Sun, P . Bio-inspired self-healing polyurethanes with multiple stimulus responsiveness . Polym. Chem. , 2019 . 10 3362 - 3370 . DOI: 10.1039/C9PY00383E http://doi.org/10.1039/C9PY00383E .

Wang, Y.; Yu, H.; Yang, H.; Hao, X.; Tang, Q.; Zhang, X . An injectable interpenetrating polymer network hydrogel with tunable mechanical properties and self-healing abilities . Macromol. Chem. Phys. , 2017 . 218 1700348 DOI: 10.1002/macp.201700348 http://doi.org/10.1002/macp.201700348 .

Peng, W. L.; You, Y.; Xie, P.; Rong, M. Z.; Zhang, M. Q . Adaptable interlocking macromolecular networks with homogeneous architecture made from immiscible single networks . Macromolecules , 2020 . 53 584 - 593 . DOI: 10.1021/acs.macromol.9b02307 http://doi.org/10.1021/acs.macromol.9b02307 .

Zhang, R.; Zhang, C.; Yang, Z.; Wu, Q.; Sun, P.; Wang, X . Hierarchical dynamics in a transient polymer network cross-linked by orthogonal dynamic bonds . Macromolecules , 2020 . 53 5937 - 5949 . DOI: 10.1021/acs.macromol.0c00407 http://doi.org/10.1021/acs.macromol.0c00407 .

Grande, A . M.; Bijleveld, J.; Garcia, S.; van Der Zwaag, S. A combined fracture mechanical–rheological study to separate the contributions of hydrogen bonds and disulphide linkages to the healing of poly(urea-urethane) networks . Polymer , 2016 . 96 26 - 34 . DOI: 10.1016/j.polymer.2016.05.004 http://doi.org/10.1016/j.polymer.2016.05.004 .

D'Elia, E.; Barg, S.; Ni, N.; Rocha, V. G.; Saiz, E . Self-healing graphene-based composites with sensing capabilities . Adv. Mater. , 2015 . 27 4788 - 4794 . DOI: 10.1002/adma.201501653 http://doi.org/10.1002/adma.201501653 .

Wu, Q.; Xiong, H.; Peng, Y.; Yang, Y.; Kang, J.; Huang, G.; Ren, X.; Wu, J . A highly stretchable and self-healing "solid-liquid" elastomer with strain-rate sensing capability . ACS Appl. Mater. Interfaces , 2019 . 11 19534 - 19540 . DOI: 10.1021/acsami.9b05230 http://doi.org/10.1021/acsami.9b05230 .

Baum, J.; Pines, A . NMR studies of clustering in solids . J. Am. Chem. Soc. , 1986 . 108 7447 - 7454 . DOI: 10.1021/ja00284a001 http://doi.org/10.1021/ja00284a001 .

Saalwächter, K.; Ziegler, P.; Spyckerelle, O.; Haidar, B.; Vidal, A.; Sommer, J. U . 1H multiple-quantum nuclear magnetic resonance investigations of molecular order distributions in poly(dimethylsiloxane) networks: evidence for a linear mixing law in bimodal systems . J. Chem. Phys. , 2003 . 119 3468 - 3482 . DOI: 10.1063/1.1589000 http://doi.org/10.1063/1.1589000 .

Anoardo, E.; Galli, G.; Ferrante, G . Fast-field-cycling NMR: applications and instrumentation . Appl. Magn. Reson. , 2001 . 20 365 - 404 . DOI: 10.1007/BF03162287 http://doi.org/10.1007/BF03162287 .

Kimmich, R. Field-cycling NMR relaxometry: instrumentation, model theories and applications . Royal Society of Chemistry, Copyright, 2018 .

Seiffert, S.; Sprakel, J . Physical chemistry of supramolecular polymer networks . Chem. Soc. Rev. , 2012 . 41 909 - 930 . DOI: 10.1039/C1CS15191F http://doi.org/10.1039/C1CS15191F .

Cross, R . Elastic and viscous properties of Silly Putty . American J. Phys. , 2012 . 80 870 - 875 . DOI: 10.1119/1.4732086 http://doi.org/10.1119/1.4732086 .

Rubinstein, M.; Colby, R. H. Polymer physics . Oxford University Press, New York: 2003 .

Mark, J. E. Physical properties of polymers handbook . Springer: 2007 .

Kimmich, R.; Fatkullin, N. Polymer Chain Dynamics and NMR In NMR • 3D Analysis • Photopolymerization , Springer Berlin Heidelberg: Berlin, Heidelberg, 2004 ; pp.1−113.

Kimmich, R.; Anoardo, E . Field-cycling NMR relaxometry . Prog. Nucl. Magn. Reson. Spectrosc. , 2004 . 44 257 - 320 . DOI: 10.1016/j.pnmrs.2004.03.002 http://doi.org/10.1016/j.pnmrs.2004.03.002 .

Bloembergen, N.; Purcell, E. M.; Pound, R. V . Relaxation effects in nuclear magnetic resonance absorption . Phys. Rev. , 1948 . 73 679 - 712 . DOI: 10.1103/PhysRev.73.679 http://doi.org/10.1103/PhysRev.73.679 .

Kruk, D.; Herrmann, A.; Rössler, E. A . Field-cycling NMR relaxometry of viscous liquids and polymers . Prog. Nucl. Magn. Reson. Spectrosc. , 2012 . 63 33 - 64 . DOI: 10.1016/j.pnmrs.2011.08.001 http://doi.org/10.1016/j.pnmrs.2011.08.001 .

Fatkullin, N.; Kimmich, R.; Weber, H. W . Spin-lattice relaxation of polymers: the memory-function formalism . Phys. Rev. E , 1993 . 47 4600 - 4603 . DOI: 10.1103/PhysRevE.47.4600 http://doi.org/10.1103/PhysRevE.47.4600 .

Schweizer, K. S . Microscopic theory of the dynamics of polymeric liquids: general formulation of a mode–mode-coupling approach . J. Chem. Phys. , 1989 . 91 5802 - 5821 . DOI: 10.1063/1.457533 http://doi.org/10.1063/1.457533 .

Kariyo, S.; Stapf, S . Influence of cross-link density and deformation on the NMR relaxation dispersion of natural rubber . Macromolecules , 2002 . 35 9253 - 9255 . DOI: 10.1021/ma025632f http://doi.org/10.1021/ma025632f .

Weber, H. W.; Kimmich, R . Anomalous segment diffusion in polymers and NMR relaxation spectroscopy . Macromolecules , 1993 . 26 2597 - 2606 . DOI: 10.1021/ma00062a031 http://doi.org/10.1021/ma00062a031 .

Martini, F.; Carignani, E.; Nardelli, F.; Rossi, E.; Borsacchi, S.; Cettolin, M.; Susanna, A.; Geppi, M.; Calucci, L . Glassy and polymer dynamics of elastomers by 1H Field-Cycling NMR relaxometry: effects of cross-linking . Macromolecules , 2020 . 53 10028 - 10039 . DOI: 10.1021/acs.macromol.0c01439 http://doi.org/10.1021/acs.macromol.0c01439 .

Hofmann, M.; Herrmann, A.; Ok, S.; Franz, C.; Kruk, D.; Saalwächter, K.; Steinhart, M.; Rössler, E. A . Polymer dynamics of polybutadiene in nanoscopic confinement as revealed by field cycling 1 H NMR . Macromolecules , 2011 . 44 4017 - 4021 . DOI: 10.1021/ma2002504 http://doi.org/10.1021/ma2002504 .

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