Chunqing ZHANG
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窄分布低乙烯基线型液体聚丁二烯的环氧化反应
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Indexed by:期刊论文

Date of Publication:2009-11-15

Journal:合成橡胶工业

Included Journals:ISTIC、CSCD

Volume:32

Issue:6

Page Number:480-484

ISSN No.:1000-1255

Key Words:负离子聚合;液体聚丁二烯;环氧化;微观结构;分子量分布;偶联剂

Abstract:采用负离子聚合法设计合成了分子量分布(MWD)窄、乙烯基含量低的线型液体聚丁二烯(NDLPB),然后用过氧甲酸原位法制备了不同环氧度的环氧化线型液体聚丁二烯(ENDLPB),并以其为偶联剂合成了梳状聚丁二烯,通过核磁共振法对ENDLPB的环氧度和结构进行了表征,考察了ENDLPB环氧度的影响因素.结果表明,随着ENDLPB环氧度的增加,环氧基特征峰逐渐增强,顺式-1,4-结构和反式-1,4-结构含量减小,1,2-结构含量不变;随着NDLPB数均分子量(~ ̄M_n)的增加,ENDLPB的环氧度减小,且~ ̄M_n略有增大,MWD约为1.08;以~ ̄M_n为2 450、MWD为1.07的NDLPB为反应物,在H_2O_2/NDLPB(摩尔比)为0.5、甲酸/NDLPB(摩尔比)为 0.4、反应温度为50 ℃的条件下反应2 h,可获得环氧度约为33%的ENDLPB,且实验的重复性良好;改变ENDLPB用量可获得不同偶联度的梳状聚丁二烯.

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Gender:Male

Alma Mater:Dalian University of Technology

Degree:Doctoral Degree

School/Department:Dept. of Polymer Materials

Discipline:Polymer Materials. Polymer Chemistry and Physics. Chemistry and Chemical Engineering of Functional

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