摘要
以甲苯-2,4-二异氰酸酯(TDI),甲基丙烯酸-β-羟乙酯(HEMA)与不同分子量的聚乙二醇(PEG)反应制备了一系列新型的丙烯酸酯类大单体,然后在引发剂偶氮二异丁腈(AIBN)作用下使大分子单体交联得到一类新型的聚氨酯材料。并对聚氨酯材料的性能进行了表征。结果表明,所制备的聚氨酯材料的拉伸强度、弹性模量、玻璃化转变温度(Tg)随PEG分子量的增加而降低,冲击强度和吸水率随PEG分子量的增加而增加,但透过率变化不明显。
Poly（urethane-acrylate） macromonomers were prepared by toluenediisocyanate （TDI）, β-hydroxyethyl methacrylate（HEMA） and different kinds of polyethylene glycol （PEG）. Then, a new kind of transparent polymer was prepared by the macromonomer crosslinked in the presence of 2,2-azo-bis-iso-butyro-nitrile（AIBN） as a radical initiator. The properties of obtained polymer were characterized. The results showed that the tensile strength, elastic modulus, and the glass transition temperature of the prepared polymer decreased with the increase of molecular weight of PEG. But, the impact strength and water absorption increased when molecular weight of PEG increased. However, the throughput had no relation with the kind of PEG.
出处
《工程塑料应用》
CAS
CSCD
北大核心
2010年第6期24-26,共3页
Engineering Plastics Application
基金
河南省教育厅自然科学研究资助项目(2009A430023)
河南省高等学校青年骨干教师资助项目(教高[2008]708号)
河南省基础与前沿技术研究资助项目(092300410127)
关键词
甲苯二异氰酸酯
聚乙二醇
大单体
性能
toluenediisocyanate
polyethylene glycol
macromonomer
property
