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首页> 外文期刊>RSC Advances >Miscibility, crystallization behavior and morphology of novel poly(butylene suberate) and poly(vinyl phenol) blends
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Miscibility, crystallization behavior and morphology of novel poly(butylene suberate) and poly(vinyl phenol) blends

机译：新型聚辛二酸丁二酯和乙烯基苯酚共混物的混溶性，结晶行为和形态

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摘要

In this research, we first prepared novel crystalline poly(butylene suberate) (PBSub) and amorphous poly(vinyl phenol) (PVPh) blends from a viewpoint of specific interaction and further studied the miscibility, crystallization behavior, and morphology of PBSub/PVPh blends with several techniques. Both a single composition dependent glass transition temperature and the depression of the equilibrium melting point of PBSub indicated that PBSub/PVPh blends were miscible over the whole blend compositions. We further investigated the crystallization behavior of neat and blended PBSub under differ crystallization conditions, and found that the nonisothermal melt crystallization behavior and overall isothermal melt crystallization kinetics of PBSub were suppressed in the blends, with respect to neat PBSub. The spherulitic morphology and growth rates of neat and blended PBSub were studied at different degrees of supercooling, revealing that the degree of supercooling was the key factor to influence the crystalline morphology and growth. The blending with PVPh showed little influence on the crystal structure but slightly reduced degree of crystallinity of PBSub in the blends.
机译：在这项研究中，我们首先从特定的相互作用角度制备了新型结晶聚辛二酸丁二酯（PBSub）和无定形聚乙烯基苯酚（PVPh）共混物，并进一步研究了PBSub / PVPh共混物的混溶性，结晶行为和形态。有几种技巧。取决于单一成分的玻璃化转变温度和PBSub平衡熔点的降低都表明PBSub / PVPh混合物在整个混合物组合物中是可混溶的。我们进一步研究了纯和共混的PBSub在不同结晶条件下的结晶行为，发现与纯PBSub相比，共混物中PBSub的非等温熔体结晶行为和整体等温熔体结晶动力学受到抑制。研究了不同过冷度下纯净和混合PBSub的球状形貌和生长速率，发现过冷度是影响结晶形貌和生长的关键因素。与PVPh的共混对晶体结构几乎没有影响，但在共混物中PBSub的结晶度略有降低。

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