Synthesis of High <italic style="font-style: italic">cis</italic>-1,4-regulated Butadiene-Isoprene Rubbers

Li-xian HUANG; Kai ZHANG; Shi-hui LI; Dong-mei CUI

doi:10.14028/j.cnki.1003-3726.2021.06.013

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Synthesis of High cis-1,4-regulated Butadiene-Isoprene Rubbers

Special Issue: In Celebration of the 80th Birthday of Professor HU You-liang | 更新时间：2022-08-30

- Synthesis of High cis-1,4-regulated Butadiene-Isoprene Rubbers
- Polymer Bulletin Vol. 34, Issue 6, Pages: 131-136(2021)
- 作者机构：
  
  1.中国科学院长春应用化学研究所,高分子物理与化学国家重点实验室,长春 130022
  2.中国科学技术大学,应用化学与工程学院,合肥 230026
  3.吉林大学高分子材料科学与工程学院,长春 130022
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2021.06.013
  CLC：
- Published：20 June 2021，
  
  Received：30 November 2020，
  
  Revised：23 February 2021，
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Li-xian HUANG, Kai ZHANG, Shi-hui LI, Dong-mei CUI. Synthesis of High cis-1,4-regulated Butadiene-Isoprene Rubbers. [J]. Polymer Bulletin 34(6):131-136(2021)
DOI：

Li-xian HUANG, Kai ZHANG, Shi-hui LI, Dong-mei CUI. Synthesis of High cis-1,4-regulated Butadiene-Isoprene Rubbers. [J]. Polymer Bulletin 34(6):131-136(2021) DOI： 10.14028/j.cnki.1003-3726.2021.06.013.

摘要

采用非茂PNP型稀土钇催化剂1催化丁二烯和异戊二烯无规共聚合

制备出了异戊二烯摩尔含量为11%~53%

高顺式-1

4-立构规整的丁戊橡胶。通过

H NMR、

C NMR 和GPC对所得共聚合的微观结构、立构规整性以及分子量及其分布进行了表征分析。采用密炼、开炼两步法将该系列丁戊橡胶与炭黑、各种助剂进行混炼和硫化成型。通过拉伸、阿克隆磨耗和动态热机械分析等实验

研究了异戊二烯含量、分子量大小等因素对丁戊橡胶硫化胶拉伸强度、撕裂强度、磨耗性能及其玻璃化转变温度和结晶性能的影响规律。

Abstract

Copolymerization of butadiene (BD) and isoprene (IP) catalyzed by PNP-ligand stabilized yttrium bis(alkyl) complex gives a series of

cis

-1

4-regulated BD-IP copolymers containing 11mol% ~53mol% isoprene units

which are characterized by

H- and

C-NMR and GPC. The resulting copolymers are compounded with carbon black and various fillers in a two-step process

and then are vulcanized in a compression molding process. The effects of isoprene content and molecular weight on the tensile strength

tearing strength

abrasion resistance

glass transition temperature and crystalline property of the vulcanized BD-IP copolymers are investigated by means of tensile strength test

Akron-abrasion test and dynamic thermomechanical analysis (DMA).

关键词

丁戊橡胶稀土催化剂高顺式-14-选择性拉伸强度

Keywords

Poly(BD-co-IP) rubberRare earth catalystHigh cis-1 4-selectivityTensile strength

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Synthesis of High cis-1,4-regulated Butadiene-Isoprene Rubbers

DOI：10.14028/j.cnki.1003-3726.2021.06.013

摘要

Abstract

关键词

Keywords

references