蓖麻油聚氨酯基网状聚合物的动态力学性质  

DYNAMIC MECHANICAL PROPERTIES OF POLYMER NETWORKS BASED ON CASTOR OIL POLYURETHANE

作　　者：刘景江[1] 刘文忠[1] 周华荣[1] 

机构地区：[1]中国科学院长春应用化学研究所

出　　处：《合成橡胶工业》1989年第6期395-397,共3页China Synthetic Rubber Industry

基　　金：国家自然科学基金

摘　　要：研究了蓖麻油聚氨酯基AB型交联聚合物(ABCP)及同步法合成互穿聚合物网络(IPN)的动态力学谱。ABCP的两组分近似互容,在动态力学谱上呈现出单一T_g松弛,用透射电子显微镜观察,聚氨酯相区尺寸小于 2 nm;而其化学组成相同的 IPN则呈现出两相结构,其动态力学谱上有两个 T_g松弛,两组分间虽有链段互穿,但其相容性仍次于 ABCP。The synthesis and dynamic mechanical properties of AB crosslinked Polymer(ABCP) and simultaneous interpenetrating polymer networks (IPN) based on castor oil polyurethane were studied. The results show that ABCP has a single Tg relaxation on the dynamic mechanical spectrum, and the dimension of castor oil polyurethane domains is less than 2 nm. Therefore, the two components in ABCP are nearly compatible. While IPN which has the identical chemical composition with ABCP described above has two Tg relaxations o...

关 键 词：双组分交联聚合物 互穿聚合物网络 聚氨酯 动态力学谱 玻璃化温度 相容性 

分 类 号：TQ333[化学工程—橡胶工业]