EA/St－AN互穿聚合物网络的加工和力学性能

董汉鹏　夏宇正　石淑先　焦书科

　　摘要：以丙烯酸乙酯为软单体，苯乙烯和丙烯腈为硬单体，二乙烯基苯或三乙二醇双丙烯酸酯为交联剂，采用多步种子乳液聚合技术制备了半互穿和全互穿聚合物网络，研究了软、硬单体配比，交联剂用量，加工次数对共聚物流变行为、力学性能和结构形态的影响。结果表明，制备的半互穿和全互穿聚合物网络均可在适宜的条件下流动成型。如果配方选择适当，反复加工后力学性能基本不变。
　　关键词：丙烯酸酯橡胶；互穿聚合物网络；热塑性弹性体；力学性能；加工性能
　　中图分类号：TQ316.6　　文献标识码：B
　　文章编号：1000－1255(2000)05－0306－04

Processability and mechanical properties of EA/St－AN interpenetrating polymer networks

Dong Hanpeng　Xia Yuzheng　Shi Shuxian　Jiao Shuke
(College of Materials Science and Engineering,Beijing University of Chemical Technology,Beijing 100029)

　　Abstract:The interpenetrating polymer networks with ethyl acrylate as soft monomer,styrene and acrylonitrile as hard monomers were prepared by emulsion copolymerization－crosslinking method.The effect of mass ratio of soft/hard monomers and crosslinking agent amount on flow behavior morphology and mechanical properties of copolymer were investigated.It was found that both F－IPN and S－IPN exhibited flowability and processability under optimum condition. When special composition was selected,the mechanical properties of the copolymer kept no change after several times of processing.
　　Keywords:acrylate rubber;interpenetrating polymer network;thermoplastic elastomer;mechanical property;processability

基金项目：国家自然科学基金资助项目(29674002)。
作者简介：董汉鹏，硕士。
董汉鹏（北京化工大学材料科学与工程学院，北京100029）
夏宇正（北京化工大学材料科学与工程学院，北京100029）
石淑先（北京化工大学材料科学与工程学院，北京100029）
焦书科（北京化工大学材料科学与工程学院，北京100029）

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收稿日期：1999－09－01