Synthesis of Well-defined Telechelic Trans-1,4-polyisoprene by Oxidative Cleavage

Zhang Luo; Xiu-bo Jiang; Wei Yao

doi:10.1007/s10118-016-1746-z

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Synthesis of Well-defined Telechelic Trans-1,4-polyisoprene by Oxidative Cleavage

Updated：2021-06-21

- Synthesis of Well-defined Telechelic Trans-1,4-polyisoprene by Oxidative Cleavage
- Synthesis of Well-defined Telechelic Trans-1,4-polyisoprene by Oxidative Cleavage
- Chinese Journal of Polymer Science 2016年34卷第3期页码：359-366
- Affiliations：
  
  Key Laboratory of Rubber-Plastics, Ministry of Education, Shandong Provincial, Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- Author bio：
  
  **Xiu-bo Jiang (姜秀波), E-mail: jxb4009@iccas.ac.cn
- Funds：
  
  Natural Science Foundation of Shandong Province(ZR2014BQ022);National Natural Science Foundation of China(51273100);Project of Shandong Province Higher Educational Science and Technology Program(J14LA12)
- DOI：10.1007/s10118-016-1746-z
  中图分类号：
- 收稿：2015-09-23，
  
  修回：2015-10-20，
  
  录用：2015-10-23，
  
  纸质出版：2016-03
- Accepted：
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Zhang Luo, Xiu-bo Jiang, Wei Yao. Synthesis of Well-defined Telechelic Trans-1,4-polyisoprene by Oxidative Cleavage[J]. Chinese Journal of Polymer Science, 2016,34(3):359-366.

Zhang Luo, Xiu-bo Jiang, Wei Yao. Synthesis of Well-defined Telechelic Trans-1,4-polyisoprene by Oxidative Cleavage[J]. Chinese Journal of Polymer Science, 2016, 34(3): 359-366. DOI: 10.1007/s10118-016-1746-z.
Zhang Luo, Xiu-bo Jiang, Wei Yao. Synthesis of Well-defined Telechelic Trans-1,4-polyisoprene by Oxidative Cleavage[J]. Chinese Journal of Polymer Science, 2016,34(3):359-366. DOI： 10.1007/s10118-016-1746-z.

Zhang Luo, Xiu-bo Jiang, Wei Yao. Synthesis of Well-defined Telechelic Trans-1,4-polyisoprene by Oxidative Cleavage[J]. Chinese Journal of Polymer Science, 2016, 34(3): 359-366. DOI: 10.1007/s10118-016-1746-z. DOI：

摘要

Abstract

Synthesis of telechelic

trans

-1

4-polyisoprenes (TPI:

trans

-structure

95%) was evaluated based on two different methods of oxidative cleavage (indirect cleavage: first epoxidation of TPI

then the selective cleavage of epoxidized units in epoxidized

trans

-1

4-polyisoprene (ETPI) and direct cleavage of isoprene units in TPI). The influence of solvents and the ratio of oxidative agents was investigated by

H-NMR and

C-NMR. A series of well-defined telechelic TPI with double terminated functional groups and less side reaction (molecular weight distribution range: 1.96-2.26) were synthesized by indirect cleavage in chloroform. Telechelic TPI showed similar crystallization behavior with TPI and interesting cold crystallization behavior characterized by DSC.

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