Competition between Liquid-liquid De-mixing, Crystallization, and Glass Transition in Solutions of PLA of Different Stereochemistry and DEET

Chanita Sungkapreecha; Walter W. Focke; René Androsch

doi:10.1007/s10118-019-2314-0

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Competition between Liquid-liquid De-mixing, Crystallization, and Glass Transition in Solutions of PLA of Different Stereochemistry and DEET

ARTICLE | Updated：2019-07-26

- Competition between Liquid-liquid De-mixing, Crystallization, and Glass Transition in Solutions of PLA of Different Stereochemistry and DEET
- Competition between Liquid-liquid De-mixing, Crystallization, and Glass Transition in Solutions of PLA of Different Stereochemistry and DEET
- Chinese Journal of Polymer Science 2020年38卷第2期页码：174-178
- Affiliations：
  
  a.Interdisciplinary Center for Transfer-oriented Research in Natural Sciences, Martin Luther University Halle-Wittenberg, 06099 Halle/Saale, Germany
  b.University of Pretoria Institute for Sustainable Malaria Control and MRC Collaborating Centre for Malaria Research, Department of Chemical Engineering, University of Pretoria, Private Bag X20, Hatfield 0028, South Africa
- Author bio：
  
  rene.androsch@iw.uni-halle.de
- Funds：
  
  This work was financially supported by Deutsche Forschungsgemeinschaft (DFG) (No. AN 212/22). We thank Evonik Nutrition & Care GmbH for kind supply of PDLLA.
- DOI：10.1007/s10118-019-2314-0
  中图分类号：
- 收稿：2019-05-17，
  
  修回：2019-6-4，
  
  录用：2019-6-10，
  
  网络首发：2019-07-26，
  
  纸质出版：2020-02
- Accepted：
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Citation: Sungkapreecha, C.; Focke, W. W.; Androsch, R. Competition between liquid-liquid de-mixing, crystallization, and glass transition in solutions of PLA of different stereochemistry and DEET. Chinese J. Polym. Sci. 2020, 38, 174–178

Chanita Sungkapreecha, Walter W. Focke, René Androsch. Competition between Liquid-liquid De-mixing, Crystallization, and Glass Transition in Solutions of PLA of Different Stereochemistry and DEET[J]. Chinese Journal of Polymer Science, 2020, 38(2): 174-178.
Citation: Sungkapreecha, C.; Focke, W. W.; Androsch, R. Competition between liquid-liquid de-mixing, crystallization, and glass transition in solutions of PLA of different stereochemistry and DEET. Chinese J. Polym. Sci. 2020, 38, 174–178 DOI： 10.1007/s10118-019-2314-0.

Chanita Sungkapreecha, Walter W. Focke, René Androsch. Competition between Liquid-liquid De-mixing, Crystallization, and Glass Transition in Solutions of PLA of Different Stereochemistry and DEET[J]. Chinese Journal of Polymer Science, 2020, 38(2): 174-178. DOI： 10.1007/s10118-019-2314-0.

摘要

Abstract

Liquid-liquid (L-L) de-mixing and vitrification of solutions of either crystallizable poly(L-lactic acid) (PLLA) or non-crystallizable poly(D/L-lactic acid) (PDLLA) with 50 m%

-diethyl-3-methylbenzamide (DEET) were analyzed by calorimetry and cloud-point measurements

which allows drawing conclusions about the effect of polymer stereochemistry on the phase behavior. Regardless of the PLA stereochemistry

vitrification of the solutions on fast cooling

hindering crystallization of PLLA

occurred below −20 °C and suppressed prior L-L de-mixing. The experimental results prove that crystallization in samples containing crystallizable PLLA

observed at around 55 °C on slow cooling

is not preceded by L-L de-mixing.

关键词

Keywords

references

Sungkapreecha, C.; Iqbal, N.; Gohn, A. M.; Focke, W. W.; Androsch, R . Phase behavior of the polymer/drug system PLA/DEET . Polymer , 2017 . 126 116 - 125 . DOI: 10.1016/j.polymer.2017.08.031 http://doi.org/10.1016/j.polymer.2017.08.031 .

Sungkapreecha, C.; Beily, M. J.; Kressler, J.; Focke, W. W.; Androsch, R . Phase behavior of the polymer/drug system PLA/DEET: effect of PLA molar mass on subambient liquid-liquid phase separation . Thermochim. Acta , 2018 . 660 77 - 81 . DOI: 10.1016/j.tca.2017.12.021 http://doi.org/10.1016/j.tca.2017.12.021 .

Martínez-Pérez, C. A.; Olivas-Armendariz, I.; Castro-Carmona, J. S.; García-Casillas, P. E . Scaffolds for tissue engineering via thermally induced phase separation . Adv. Regenerative Med.: InTech , 2011 . 275 - 294 . .

Lloyd, D. R.; Kinzer, K. E.; Tseng, H. S . Microporous membrane formation via thermally induced phase separation. I. Solid-liquid phase separation . J. Membr. Sci. , 1990 . 52 239 - 261 . DOI: 10.1016/S0376-7388(00)85130-3 http://doi.org/10.1016/S0376-7388(00)85130-3 .

Lloyd, D. R.; Kim, S. S.; Kinzer, K. E . Microporous membrane formation via thermally-induced phase separation. II. Liquid-liquid phase separation . J. Membr. Sci. , 1991 . 64 1 - 11 . DOI: 10.1016/0376-7388(91)80073-F http://doi.org/10.1016/0376-7388(91)80073-F .

Katz, T. M.; Miller, J. H.; Hebert, A. A . Insect repellents: historical perspectives and new developments . J. Am. Acad. Dermatol. , 2008 . 58 865 - 871 . DOI: 10.1016/j.jaad.2007.10.005 http://doi.org/10.1016/j.jaad.2007.10.005 .

Roberts, J. R.; Reigart, J. R . Does anything beat DEET? . Pediatr. Ann. , 2004 . 33 443 - 453 . .

Huggins, M. L . Solutions of long chain compounds . J. Chem. Phys. , 1941 . 9 440 - 440 . .

Flory, P. J . Thermodynamics of high polymer solutions . J. Chem. Phys. , 1942 . 10 51 - 61 . DOI: 10.1063/1.1723621 http://doi.org/10.1063/1.1723621 .

Shultz, A. R.; Flory, P. J . Phase equilibria in polymer-solvent systems . J. Am. Chem. Soc. , 1952 . 74 4760 - 4767 . DOI: 10.1021/ja01139a010 http://doi.org/10.1021/ja01139a010 .

Shultz, A. R.; Flory, P. J . Phase equilibria in polymer-solvent systems. II. Thermodynamic interaction parameters from critical miscibility data . J. Am. Chem. Soc. , 1953 . 75 3888 - 3892 . DOI: 10.1021/ja01112a005 http://doi.org/10.1021/ja01112a005 .

Mandelkern, L . Crystallization kinetics in high polymers. II. Polymer-diluent mixtures . J. Appl. Phys. , 1955 . 26 443 - 451 . DOI: 10.1063/1.1722016 http://doi.org/10.1063/1.1722016 .

Product information, Sulzer Chemtec Ltd. https://www.sulzer.com/-/media/files/products/polymer_production_technology/brochures/fact_sheet_polylactides.ashx?la=en: accessed 14/06/2019 https://www.sulzer.com/-/media/files/products/polymer_production_technology/brochures/fact_sheet_polylactides.ashx?la=en:accessed14/06/2019 .

Androsch, R.; Di Lorenzo, M. L.; Schick, C . Crystal nucleation of random L/D-lactide copolymers . Eur. Polym. J. , 2016 . 75 474 - 485 . DOI: 10.1016/j.eurpolymj.2016.01.020 http://doi.org/10.1016/j.eurpolymj.2016.01.020 .

Product information, Evonik Nutrition & Care GmbH; https://healthcare.evonik.com/product/health-care/en/products/biomaterials/resomer/pages/controlled-release.aspx: accessed 13/06/2019 https://healthcare.evonik.com/product/health-care/en/products/biomaterials/resomer/pages/controlled-release.aspx:accessed13/06/2019 .

Product information, Sigma-Aldrich Chemie GmbH; http://www.sigmaaldrich.com/catalog/product/aldrich/d100951: accessed 13/06/2019 http://www.sigmaaldrich.com/catalog/product/aldrich/d100951:accessed13/06/2019 .

Di Lorenzo, M. L.; Rubino, P.; Luijkx, R.; Hélou, M . Influence of chain structure on crystal polymorphism of poly(lactic acid). Part 1: effect of optical purity of the monomer . Colloid Polym. Sci. , 2014 . 292 399 - 409 . DOI: 10.1007/s00396-013-3081-z http://doi.org/10.1007/s00396-013-3081-z .

Sungkapreecha, C.; Iqbal, N.; Focke, W. W.; Androsch, R . Crystallization of poly(L-lactic acid) (PLLA) in solution with the mosquito-repellent N , N -diethyl-3-methyl-benzamide (DEET) . Polym. Cry. , 2019 . 2 e10029 .

Androsch, R.; Schick, C.; Di Lorenzo, M. L . Kinetics of nucleation and growth of crystals of poly(L-lactic acid) . Adv. Polym. Sci. , 2018 . 279 235 - 272 . .

Androsch, R.; Schick, C . Interplay between the relaxation of the glass of random L/D-lactide copolymers and homogeneous crystal nucleation: evidence for segregation of chain defects . J. Phys. Chem. B , 2016 . 120 4522 - 4528 . DOI: 10.1021/acs.jpcb.6b03022 http://doi.org/10.1021/acs.jpcb.6b03022 .

Righetti, M. C.; Gazzano, M.; Di Lorenzo, M. L.; Androsch, R . Enthalpy of melting of α ′-and α -crystals of poly (L-lactic acid) . Eur. Polym. J. , 2015 . 70 215 - 220 . .

Hu, W. B.; Mathot, V. B. F.; Frenkel, D . Lattice model study of the thermodynamic interplay of polymer crystallization and liquid-liquid demixing . J. Chem. Phys. , 2003 . 118 10343 - 10348 . DOI: 10.1063/1.1572462 http://doi.org/10.1063/1.1572462 .

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

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