Synthesis of ethylidene norbornene

doi:10.3969/j.issn.0438-1157.2014.01.004

Abstract

Abstract: Regarding to the ongoing demand for poly(ethylene propylene diene monomer) (EPDM), ethylidene norbornene (ENB) as its co-monomer has attracted important attention. In this paper, synthesis mechanism and technology, production status and market trend of ENB are reviewed. The discussion about synthesis processes of ethylidene norbornene is divided into two parts, one is process optimization for side reaction control in the part of vinyl norbornene (VNB) synthesis by Diels-Alder reaction between butadiene and cyclopentadiene obtained from (di)cyclopentadiene by high temperature degradation, the other is influence of different types of catalysts in the VNB isomerization process.

Key words: ethylidene norbornene, reaction, isomerization, butadiene, (di)cyclopentadiene, synthesis, polymerization

摘要： 近年来，随着三元乙丙橡胶的广泛应用，作为其首选第三单体的亚乙基降冰片烯（ENB）越来越受到关注。综述了ENB的反应机理、合成工艺、生产情况及市场动向。在反应机理方面主要包括先由双环戊二烯在高温下裂解成的环戊二烯与丁二烯经Diels-Alder反应生成中间体乙烯基降冰片烯（VNB），再经其异构化反应制得亚乙基降冰片烯。重点阐述了乙烯基降冰片烯合成阶段副反应控制的工艺优化，以及VNB异构化阶段不同类型催化剂的影响等。

关键词: 亚乙基降冰片烯, 反应, 异构化反应, 丁二烯, （双）环戊二烯, 合成, 聚合

CLC Number:

TQ231.2

XU Huiming, SUN Chunshui, FU Jiansong, XIE Jiaming, SHI Jiale, LIU Xue, ZHANG Yan, SONG Yuexiao, YAO Zhen, CAO Kun. Synthesis of ethylidene norbornene[J]. CIESC Journal, 2014, 65(1): 32-38.

许惠明, 孙春水, 傅建松, 谢家明, 史家乐, 刘学, 张岩, 宋月潇, 姚臻, 曹堃. 亚乙基降冰片烯的合成[J]. 化工学报, 2014, 65(1): 32-38.

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