Synthesis and Analysis of Hydrogenated Star Polymers of Styrene and Dienes

Wei LI; Xi-chen GONG; Xiao-jie LIU; Li HAN; Hong-wei MA

doi:10.14028/j.cnki.1003-3726.2018.11.005

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Synthesis and Analysis of Hydrogenated Star Polymers of Styrene and Dienes

更新时间：2022-09-05

- Synthesis and Analysis of Hydrogenated Star Polymers of Styrene and Dienes
- Polymer Bulletin Vol. 31, Issue 11, Pages: 44-51(2018)
- 作者机构：
  
  1.沈阳化工研究院有限公司，沈阳　110000
  2.东风汽车集团股份有限公司技术中心，武汉　430000
  3.大连理工大学化工学院高分子材料系，大连　116024
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2018.11.005
  CLC：
- Published：20 November 2018，
  
  Received：14 May 2018，
  
  Revised：07 September 2018，
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Wei LI, Xi-chen GONG, Xiao-jie LIU, Li HAN, Hong-wei MA. Synthesis and Analysis of Hydrogenated Star Polymers of Styrene and Dienes. [J]. Polymer Bulletin 31(11):44-51(2018)
DOI：

Wei LI, Xi-chen GONG, Xiao-jie LIU, Li HAN, Hong-wei MA. Synthesis and Analysis of Hydrogenated Star Polymers of Styrene and Dienes. [J]. Polymer Bulletin 31(11):44-51(2018) DOI： 10.14028/j.cnki.1003-3726.2018.11.005.

摘要

基于活性阴离子聚合方法，通过改变单体投料比例，成功制备了 3种二乙烯基苯（DVB）偶联的星形结构苯乙烯-二烯烃共聚物S-IBS，其平均偶联臂数（AGN）达到7.0以上，偶联效率（CE）达到93%。进一步加氢得到氢化苯乙烯-二烯烃（HSD）型共聚物—氢化星形苯乙烯-异戊二烯-丁二烯（HS-IBS），氢化效率达到95% 以上，同时对氢化前后的聚合物进行表征以及组成含量计算。将氢化后星形聚合物HS-IBS合理简化视为乙烯-丙烯-苯乙烯（E-P-St）三元共聚物后，结合

C以及

H-NMR进行组成含量计算。氢化后组成计算值与实际投料组成以及氢化前核磁计算值误差在1%以内，表明将氢化后聚合物简化视为E-P-St共聚物，进而推算组成的模拟计算方法具有非常好的精确度。这一方法为采用活性阴离子聚合-偶联-氢化的HSD类黏指剂产品剖析建立了可靠的分析和计算方法，能够准确地推断其组成结构，进而分析其合成方法，也便于国内研发人员对这一类产品的结构组成进行有效的解析。

Abstract

Based on the living anionic polymerization

three star tri-polymers of styrene and dienes (S-IBS) were successfully synthesized with divinylbenzene (DVB) as coupling agent. Their average grafted number (AGN) was above 7.0 and the efficiency for coupling (CE) was about 93%. Then

the hydrogenated star polymers ( HS-IBS) were also successfully prepared. The efficiency for hydrogenation was above 95%

and the calculation for composition of copolymers was established. The copolymers of HS-IBS were regarded as tri-polymers of ethylene

propylene and styrene (E-P-St)

thus the

C and

H NMR method were used for characterization and calculation. The results between calculated compositions after hydrogenation

feed ratios and before hydrogenation showed the minimal error below 1%. This also described the calculation method exhibited good precision in the analysis of hydrogenated tri-polymers.

关键词

活性阴离子聚合星形氢化苯乙烯-二烯烃共聚物结构分析方法

Keywords

Living anionic polymerizationHydrogenated star polymers of styrene and dienesAnalysis of structure

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State Key Laboratory of Fine Chemicals,Key Laboratory of Polymer Science and Engineering of Liaoning Province, Department of Polymer Science and Engineering,Faculty of Chemical,Environmental and Biological Science and Technology, Dalian University of Technology

State Key Laboratory of Fine Chemicals, Liaoning Province Key Laboratory of Polymer Science and Engineering, Department of Polymer Science and Engineering, Faculty of Chemical, Environmental and Biological Science and Technology, Dalian University of Technology

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