Amphiphilic Graft Copolymers of Hydroxypropyl Cellulose Backbone with Nonpolar Polyisobutylene Branches

Jin-Rui Deng; Cong-Lei Zhao; Zhi-Tao Wei; Yi-Xian Wu

doi:10.1007/s10118-021-2546-7

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Amphiphilic Graft Copolymers of Hydroxypropyl Cellulose Backbone with Nonpolar Polyisobutylene Branches

ARTICLE | Updated：2021-06-04

- Amphiphilic Graft Copolymers of Hydroxypropyl Cellulose Backbone with Nonpolar Polyisobutylene Branches
- Amphiphilic Graft Copolymers of Hydroxypropyl Cellulose Backbone with Nonpolar Polyisobutylene Branches
- Chinese Journal of Polymer Science 2021年39卷第8期页码：1029-1039
- Affiliations：
  
  State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
- Author bio：
  
  wuyx@mail.buct.edu.cn
- Funds：
  
  This work was financially supported by the National Natural Science Foundation of China (Nos. 21574007 and 51521062) and the Fundamental Research Funds for the Central Universities (Nos. XK1802-2 and XK1802-1).
- DOI：10.1007/s10118-021-2546-7
  中图分类号：
- 收稿：2020-12-06，
  
  修回：2020-12-30，
  
  录用：2020-12-31，
  
  网络首发：2021-06-04，
  
  纸质出版：2021-06-18
- Accepted：
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Deng, J. R.; Zhao, C. L.; Wei, Z. T.; Wu, Y. X. Amphiphilic graft copolymers of hydroxypropyl cellulose backbone with nonpolar polyisobutylene branches. Chinese J. Polym. Sci. 2021, 39, 1029–1039

Jin-Rui Deng, Cong-Lei Zhao, Zhi-Tao Wei, et al. Amphiphilic Graft Copolymers of Hydroxypropyl Cellulose Backbone with Nonpolar Polyisobutylene Branches[J]. Chinese Journal of Polymer Science, 2021, 39(8): 1029-1039.
Deng, J. R.; Zhao, C. L.; Wei, Z. T.; Wu, Y. X. Amphiphilic graft copolymers of hydroxypropyl cellulose backbone with nonpolar polyisobutylene branches. Chinese J. Polym. Sci. 2021, 39, 1029–1039 DOI： 10.1007/s10118-021-2546-7.

Jin-Rui Deng, Cong-Lei Zhao, Zhi-Tao Wei, et al. Amphiphilic Graft Copolymers of Hydroxypropyl Cellulose Backbone with Nonpolar Polyisobutylene Branches[J]. Chinese Journal of Polymer Science, 2021, 39(8): 1029-1039. DOI： 10.1007/s10118-021-2546-7.

摘要

Abstract

The novel amphiphilic graft copolymers with hydrophilic hard polar hydroxypropyl cellulose (HPC) backbone and hydrophobic soft nonpolar polyisobutylene (PIB) branches have been successfully synthesized through nucleophilic substitution reaction of living PIB chains carrying oxonium ions with the −OH groups along HPC backbone. The PIB branch length in the graft copolymers could be designed by living cationic polymerization and the grafting density could be adjusted by PIB

/−OH molar ratio. The living PIB chains carrying oxonium ion were prepared by transformation of allyl bromide end groups in the presence of AgClO

and silver nanoparticles (3.2±0.3 nm

0.7 wt%−1.8 wt%) generated

in situ

from AgBr. The phase-separation morphology was formed in the graft copolymers due to their incompatibility between backbone and branches. The hydrophilicity on the surface of graft copolymer films could be turned to hydrophobicity by increasing grafting density or/and length of PIB branches. The soft PIB segments in graft copolymers provided an unique surface

via

self-assembly for anti-protein adsorption against bovine serum albumin. A small amount of Ag nanoparticles in the copolymers contributed to good antibacterial activities against

Staphylococcus aureus

Escherichia coli

关键词

Keywords

references

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