摘要
利用"同步互穿"工艺室温固化制备了一系列聚氨酯/乙烯基酯树脂互穿聚合物网络(PU/VER SINs),采用傅立叶变换红外光谱(FT-IR)对SINs体系的聚合过程进行了动态跟踪及半定量分析,研究了固化体系对SINs的影响及两组分间的相互作用.结果表明:BPO和DBTDL的用量直接影响到两个网络的相对聚合速率;当BPO用量为VER树脂的0.75%,DBTDL用量为PU的0.6%时,PU的加聚反应首先进行并与VER的转化率近似.两个网络的最终转化率高于90%,基本实现了同步互穿工艺.
Polyurethane/vinyl ester resin SINs （PU/VER SINs） were synthesized at room temperature by simultaneous interpenetrating process. Polymerization processes of PU/VER SINs were determined by the dynamic tracing and the half quantitative analysis of FT-IR, the interreaction of the two polymers and the effects of curing system on reaction of SINs were investigated. Results indicated the ratio of BPO and DBTDL directly impacted the conversion of two networks,and the reactions of PU and VER in the system had effects on each other. When the dosage of BPO was 0. 75%（w/w） of VER and the amount of DBTDL was 0. 6% （w/w） of PU, the polyaddition reactions of PU took place at the first and the conservations of two polymers were similar during the reaction. Both of ultimate conversations were higher than 90%, and the reaction realized interpenetrating polymer networks basically.
出处
《陕西科技大学学报（自然科学版）》
2008年第6期39-44,共6页
Journal of Shaanxi University of Science & Technology
