Fractionation of Polyolefin Elastomer by a Modified SSA Technique

Xin-Tong Zhao; Yong-Feng Men

doi:10.1007/s10118-022-2740-2

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Fractionation of Polyolefin Elastomer by a Modified SSA Technique

RESEARCH ARTICLE | Updated：2022-09-23

- Fractionation of Polyolefin Elastomer by a Modified SSA Technique
- Fractionation of Polyolefin Elastomer by a Modified SSA Technique
- Chinese Journal of Polymer Science 2022年40卷第10期页码：1252-1258
- Affiliations：
  
  a.State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
  b.School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
- Author bio：
  
  men@ciac.ac.cn
- Funds：
  
  This work was financially supported by the National Natural Science Foundation of China Enterprise Innovation and Development Joint Fund (No. U19B6001). We thank Mr. Chaoqun Wang and Prof. Zhongbao Jian in our institute for providing the LPE sample.
- DOI：10.1007/s10118-022-2740-2
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Xin-Tong Zhao, Yong-Feng Men. Fractionation of Polyolefin Elastomer by a Modified SSA Technique[J]. Chinese Journal of Polymer Science, 2022,40(10):1252-1258.

Xin-Tong Zhao, Yong-Feng Men. Fractionation of Polyolefin Elastomer by a Modified SSA Technique[J]. Chinese Journal of Polymer Science, 2022,40(10):1252-1258.
Xin-Tong Zhao, Yong-Feng Men. Fractionation of Polyolefin Elastomer by a Modified SSA Technique[J]. Chinese Journal of Polymer Science, 2022,40(10):1252-1258. DOI： 10.1007/s10118-022-2740-2.

Xin-Tong Zhao, Yong-Feng Men. Fractionation of Polyolefin Elastomer by a Modified SSA Technique[J]. Chinese Journal of Polymer Science, 2022,40(10):1252-1258. DOI： 10.1007/s10118-022-2740-2.

摘要

In this paper, we report a modified SSA thermal fractionation approach by adding a small fraction of linear polyethylene in an ethylene/1-octene copolymer that showed better fractionation result due to heterogeneous nucleation of linear polyethylene for all fractions.

Abstract

As an important part of semicrystalline polymer materials, polyolefin elastomers are widely used, and the in-depth analysis of their molecular chain structure information is of great significance to promote their rapid development. We show in this work an effort in characterizing a commercial polyolefin elastomer of ethylene/1-octene copolymer by a modified successive self-nucleation and annealing (SSA) technique. A small amount of linear polyethylene was blended with the ethylene/1-octene copolymer serving as nucleation agent during SSA. It turned out that a tiny fraction of linear polyethylene can significantly promote the crystallization of the copolymer during cooling from different annealing temperatures and increase the melting temperature of the fractions so that providing apparent methylene sequence length much closer to the real value than obtained by traditional SSA technique.

关键词

Keywords

Polyolefin elastomerEthylene-co-octene Thermal fractionationSSAMicro structure

references

Keating, M. Y.; McCord, E. F . Evaluation of the comonomer distribution in ethylene copolymers using DSC fractionation . Thermochimica Acta , 1994 . 243 129 -145 . DOI:10.1016/0040-6031(94)85048-8http://doi.org/10.1016/0040-6031(94)85048-8 .

Wild, L.; Ryle, T. R.; Knobeloch, D. C.; Peat, I. R . Determination of branching distributions in polyethylene and ethylene copolymers . J. Polym. Sci., Part B: Polym. Phys. , 1982 . 20 441 -455 . DOI:10.1002/pol.1982.180200307http://doi.org/10.1002/pol.1982.180200307 .

Kamiya, T.; Ishikawa, N.; Kambe, S.; Ikegami, I.; Nishibu, H.; Hattori, T . A comonomer distribution analysis of lldpe using stepwise isothermal segregation technique by DSC . Antec. Proc. , 1990 . 48 871 -873. .

Balbontin, G.; Camurati, I.; Dallocco, T.; Finotti, A.; Franzese, R.; Vecellio, G . Determination of 1-butene distribution in lldpe by DSC analysis after thermal fractionated crystallization . Angew. Makromol. Chem. , 1994 . 219 139 -160 . DOI:10.1002/apmc.1994.052190112http://doi.org/10.1002/apmc.1994.052190112 .

Varga, J.; Toth, F . ANNEALING OF The beta-modification of polypropylene . Makromol. Chem.-Macromol. Symp. , 1986 . 5 213 -223 . DOI:10.1002/masy.19860050120http://doi.org/10.1002/masy.19860050120 .

Müller, A. J.; Hernandez, Z. H.; Arnal, M. L.; Sanchez, J. J . Successive self-nucleation/annealing (SSA): a novel technique to study molecular segregation during crystallization . Polym. Bull. , 1997 . 39 465 -472 . DOI:10.1007/s002890050174http://doi.org/10.1007/s002890050174 .

Shirayama, K.; Okada, T.; Kita, S. I . Distribution of short-chain branching in low-density polyethylene . J. Polym. Sci., Part A: General Papers , 1965 . 3 907 -916 . DOI:10.1002/pol.1965.100030306http://doi.org/10.1002/pol.1965.100030306 .

Müller, A. J.; Arnal, M. L . Thermal fractionation of polymers . Prog. Polym. Sci. , 2005 . 30 559 -603 . DOI:10.1016/j.progpolymsci.2005.03.001http://doi.org/10.1016/j.progpolymsci.2005.03.001 .

Müller, A. J.; Michell, R. M.; Perez, R. A.; Lorenzo, A. T . Successive self-nucleation and annealing (SSA): correct design of thermal protocol and applications . Eur. Polym. J. , 2015 . 65 132 -154 . DOI:10.1016/j.eurpolymj.2015.01.015http://doi.org/10.1016/j.eurpolymj.2015.01.015 .

Xue, Y. H.; Bo, S. Q.; Ji, X. L . Parameters optimization of successive self-nucleation/annealing thermal fractionation experiments for polyethylene resin and comparison with step crystallization . Acta Polymerica Sinica (in Chinese) , 2015 . 326 -330. .

Cavallo, D.; Lorenzo, A. T.; Muller, A. J . Probing the early stages of thermal fractionation by successive self-nucleation and annealing performed with fast scanning chip-calorimetry . J. Polym. Sci. Part B: Polym. Phys. , 2016 . 54 2200 -2209. .

Fillon, B.; Wittmann, J. C.; Lotz, B.; Thierry, A . Self-nucleation and recrystallization of isotactic polypropylene (alpha-phase) investigated by differential scanning calorimetry . J. Polym. Sci. Part B: Polym. Phys. , 1993 . 31 1383 -1393. .

Hu, W. B.; Mathot, V. B. F.; Alamo, R. G.; Gao, H. H.; Chen, X. J. Crystallization of statistical copolymers. In Polymer Crystallization I: From Chain Microstructure to Processing, Auriemma, F.; Alfonso, G. C.; DeRosa, C. Eds. 2017; Vol. 276, pp. 1−43.

Zha, L.; Hu, W . Homogeneous crystal nucleation triggered by spinodal decomposition in polymer solutions . J. Phys. Chem. B , 2007 . 111 11373 -11378 . DOI:10.1021/jp068431chttp://doi.org/10.1021/jp068431c .

Xu, J. J.; Ma, Y.; Hu, W . B.; Rehahn, M.; Reiter, G. Cloning polymer single crystals through self-seeding . Nat. Mater. , 2009 . 8 348 -353 . DOI:10.1038/nmat2405http://doi.org/10.1038/nmat2405 .

Zhang, R.; Zha, L. Y.; Hu, W. B . Intramolecular crystal nucleation favored by polymer crystallization: Monte Carlo simulation evidence . J. Phys. Chem. B , 2016 . 120 6754 -6760 . DOI:10.1021/acs.jpcb.6b01757http://doi.org/10.1021/acs.jpcb.6b01757 .

Wang, C. Q.; Kang, X. H.; Dai, S. Y.; Cui, F. C.; Li, Y. Q.; Mu, H. L.; Mecking, S.; Jian, Z. B . Efficient suppression of chain transfer and branching via C-s-type shielding in a neutral nickel(II) catalyst . Angew. Chem.Int. Ed. , 2021 . 60 4018 -4022 . DOI:10.1002/anie.202013069http://doi.org/10.1002/anie.202013069 .

Adisson, E.; Ribeiro, M.; Deffieux, A.; Fontanille, M . Evaluation of the heterogeneity in linear low-density polyethylene comonomer unit distribution by differential scanning calorimetry characterization of thermally treated samples . Polymer , 1992 . 33 4337 -4342 . DOI:10.1016/0032-3861(92)90276-3http://doi.org/10.1016/0032-3861(92)90276-3 .

Keating, M.; Lee, I. H.; Wong, C. S . Thermal fractionation of ethylene polymers in packaging applications . Thermochimica Acta , 1996 . 284 47 -56 . DOI:10.1016/0040-6031(96)02891-2http://doi.org/10.1016/0040-6031(96)02891-2 .

Chen, F.; Shanks, R. A.; Amarasinghe, G . Molecular distribution analysis of melt-crystallized ethylene copolymers . Polym. Int. , 2004 . 53 1795 -1805 . DOI:10.1002/pi.1583http://doi.org/10.1002/pi.1583 .

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