semi-IPN结构下的PEG/PMMA多形转变形状记忆性能  

Multiple-Shape Memory of PEG/PMMA with Semi-IPN Network Structure

作　　者：卢宇昕 史芸英 唐小龙 张文翰 温慧颖[1] 乔鹏飞 LU Yuxin;SHI Yunying;TANG Xiaolong;ZHANG Wenhan;WEN Huiying;QIAO Pengfei(Northeast Forestry University,College of Chemistry,Chemical Engineering and Resource Utilization,Harbin,Heilongjiang 150040,China)

机构地区：[1]东北林业大学化学化工与资源利用学院,黑龙江哈尔滨150040

出　　处：《塑料》2022年第3期149-155,共7页Plastics

摘　　要：形状记忆高分子材料由于其性能和响应方式可调控、易于加工成型、质轻价廉,具有较大的研究价值。在半互穿型网络(semi-IPN)结构下,基于宽玻璃化转变温度和结晶相并存的条件,利用聚乙二醇(PEG)和聚甲基丙烯酸甲酯(PMMA)分别作为软段和硬段载体设计合成半互穿网络结构材料,结果表明,熔点(T_(m))和玻璃化转变温度(T_(g))能对多形记忆行为产生明显的影响。利用傅里叶红外(FTIR)、差示扫描量热仪(DSC)、动态力学分析仪(DMA)和形状记忆测试,对其结构,热力学性,动态力学性能和形状记忆能力进行验证分析,结果表明,semi-IPN下的PEG/PMMA是一种具有可控的结构及优良性能的多形形状记忆材料。Shape memory polymer materials are of great research value in practical application because of typical characteristics including adjustable properties and response mode,low-cost and easy processing.the effects of T_(m) and T_(g) on shape memory behavior in a semi-interpenetrating(semi-IPN)network investigated,which were based on the co-existence of wide range of T_(g) and crystalline structure.The semi-IPN network structure materials were designed and synthesized by using polyethylene glycol(PEG)and polymethyl methacrylate(PMMA)as soft and hard segments respectively.By using fourier infrared(FTIR),differential scanning calorimeter(DSC),dynamic mechanical analyzer(DMA)and shape memory tests to verify and analyze structure,thermodynamic properties,dynamic mechanical properties and shape memory bahavior,PEG/PMMA was proven to be semi-IPN polymorphic shape memory material with controllable structure and excellent performance.

关 键 词：形状记忆材料 半互穿型网络结构 宽玻璃化转变温度 熔点 多形记忆 

分 类 号：TQ325.7[化学工程—合成树脂塑料工业]