Reactive compatibilization of SAN/EPR blends. 1. Dependence of the phase morphology development on the reaction kinetics
Reactive compatibilization of SAN/EPR blends. 1. Dependence of the phase morphology development on the reaction kinetics
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DOI：
10.1021/ma991314d
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发表时间：
2000-08
期刊：
影响因子：
5.5
通讯作者：
C. Pagnoulle;C. Koning;L. Leemans;R. Jerome
中科院分区：
文献类型：
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作者：
C. Pagnoulle;C. Koning;L. Leemans;R. Jerome
将含有20wt%活性SAN-X的SAN与含有50wt%马来酸酐接枝的EP链的EPDM（EP-g-MA）熔融共混。两种类型的反应性基团（X）已经连接到SAN（2摩尔%的X）上，即，伯胺及其前体在加工温度下，即，氨基甲酸酯。SAN/橡胶重量组成保持恒定在75/25。已研究了两种类型的反应性SAN在反应性混合期间从颗粒大小的橡胶颗粒到分散的亚微米液滴的相形态的发展，并且已发现其取决于互聚物反应速率，从而取决于附接到SAN的胺和氨基甲酸酯基团朝向EP的马来酸酐功能的相对反应性。
SAN containing 20 wt % of reactive SAN-X has been melt blended with EPDM containing 50 wt % of EP chains grafted by maleic anhydride (EP-g-MA). Two types of reactive groups (X) have been attached to SAN (2 mol % of X), i.e., a primary amine and a precursor of it at the processing temperature, i.e., a carbamate. The SAN/rubber weight composition was kept constant at 75/25. The development of the phase morphology from pellet-sized rubber particles to dispersed submicrometer droplets has been investigated during reactive mixing for the two types of reactive SAN and has been found to depend on the interpolymer reaction rate and thus on the relative reactivity of the amine and the carbamate groups attached to SAN toward the maleic anhydride function of EP.