文献类型：期刊文献

中文题名：氨酯丙烯酸酯树脂的合成及其固化反应动力学研究

英文题名：Synthesis and Copolymerization Kinetics of Urethane Acrylate Resin

作者：华峰君[1];程磊[1];胡春圃[1]

机构：[1]华东理工大学材料科学与工程研究所

年份：1997

卷号：10

期号：4

起止页码：513

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：CSTPCD;;CSCD:【CSCD2011_2012】；

基金：国家自然科学基金

语种：中文

中文关键词：氨酯丙烯酸酯;甲基丙烯酸酯;UAO;UAR;固化反应

外文关键词：Urethane acrylate resin ,Polyoxylpropylene,Methyl methylacrylate,Copolymerization kinetics, FT-IR

摘要：用不同分子量的聚氧化丙烯二元醇合成了一系列氨酯丙烯酸酯齐聚物（ＵＡＯ）以及含硬段／软段结构的ＵＡＯ，并用ＦＴ－ＩＲ跟踪了这类ＵＡＯ的合成过程。通过ＵＡＯ的链端双键测定，以及ＧＰＣ、ＶＰＯ测定的分子量，表征了ＵＡＯ的数均官能团度。进一步通过ＦＴ－ＩＲ研究了由ＵＡＯ与甲基丙烯酸甲酯形成的氨酯丙烯酸酯树脂（ＵＡＲ）固化时的共聚反应动力学，发现其共聚反应速率与体系中的扩散效应密切相关。在这类ＵＡＯ中引入硬段后，共聚合体系呈现出反常的动力学行为，与网络结构形成过程中材料的形态发展有关。
A series of urethane arylate oligomer(UAO) with or without hard segments were synthesized by using different molecular weight polyoxylpropylene diols(PPO-400,PPO-1000 and PPO-2000),and the synthetic process was monitored by means of FT-IR.The number average functionality(f) of these UAOs was characterized by means of the measurements of double bond concentration at the end of UAO chains and by using GPC or VPO. Moreover, the copolymerization kinetics of UAOs with methyl methylacrylate,which is generally called as urethane acrylate resin(UAR), was studied. The experimental results showed that the rate of copolymerization was strongly related to diffusion effect for these systems, and especial for UAOs containing hard segments. The unusual kinetics of copolymerization observed could be therefore attributed to the development of morphology and the vicosity change during the formation of UAR networks.