Crystallization-driven Self-assembly of Isotactic Polystyrene in N, N-Dimethylformamide

Qi-hua Zhou; Zhi-yun Li; Hua-qing Liang; Yong-jiang Long; Qing Wu; Hai-yang Gao; Guo-dong Liang; Fang-ming Zhu

doi:10.1007/s10118-015-1615-1

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Crystallization-driven Self-assembly of Isotactic Polystyrene in N, N-Dimethylformamide

PAPER | Updated：2021-06-21

- Crystallization-driven Self-assembly of Isotactic Polystyrene in N, N-Dimethylformamide
- Crystallization-driven Self-assembly of Isotactic Polystyrene in N,N-Dimethylformamide
- Chinese Journal of Polymer Science 2015年33卷第4期页码：646-651
- Affiliations：
  
  a.Key Lab for Polymer Composites and Functional Materials of Ministry of Education, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
  b.DSAPM Lab, Institute of polymer Science, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
- Author bio：
  
  **Fang-ming Zhu (祝方明), E-mail: ceszfm@mail.sysu.edu.cn
- Funds：
  
  National Natural Science Foundation of China(21174167;20974123);Guangdong Province Higher School Science and Technology Innovation Key Project;Natural Science Foundation of Guangdong Province(S2013030013474)
- DOI：10.1007/s10118-015-1615-1
  中图分类号：
- 收稿：2014-08-13，
  
  修回：2014-09-03，
  
  录用：2014-09-12，
  
  纸质出版：2015-04
- Accepted：
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Qi-hua Zhou, Zhi-yun Li, Hua-qing Liang, 等. Crystallization-driven Self-assembly of Isotactic Polystyrene in N, N-Dimethylformamide[J]. Chinese Journal of Polymer Science, 2015,33(4):646-651.

Qi-hua Zhou, Zhi-yun Li, Hua-qing Liang, et al. Crystallization-driven Self-assembly of Isotactic Polystyrene in N,N-Dimethylformamide[J]. Chinese Journal of Polymer Science, 2015, 33(4): 646-651. DOI: 10.1007/s10118-015-1615-1.
Qi-hua Zhou, Zhi-yun Li, Hua-qing Liang, 等. Crystallization-driven Self-assembly of Isotactic Polystyrene in N, N-Dimethylformamide[J]. Chinese Journal of Polymer Science, 2015,33(4):646-651. DOI： 10.1007/s10118-015-1615-1.

Qi-hua Zhou, Zhi-yun Li, Hua-qing Liang, et al. Crystallization-driven Self-assembly of Isotactic Polystyrene in N,N-Dimethylformamide[J]. Chinese Journal of Polymer Science, 2015, 33(4): 646-651. DOI: 10.1007/s10118-015-1615-1. DOI：

摘要

Abstract

Herein we demonstrate crystallization-driven self-assembly of isotactic polystyrene (

PS) with high isotacticity and narrow molecular weight distribution and crystallization-induced switching of the morphology of

PS aggregates in

-dimethylformamide (DMF). The formation and morphology switching of the self-assembled aggregates of

PS are investigated by means of dynamic light scattering (DLS)

scanning electron microscopy (SEM)

differential scanning calorimetry (DSC) and wide angle X-ray diffraction (WXRD). The results reveal that cooling DMF solution of

PS promotes

PS chains to self-assemble into spherical aggregates with a gelled core cross-linked by microcrystals

which is surrounded by solvent-swollen corona. Furthermore

crystallization induces the deformation of

PS aggregates from spherical to plate-like or nest-like.

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