Investigation of compatibility in syndiotactic poly(methyl methacrylate)/poly(vinyl chloride) blends
Investigation of compatibility in syndiotactic poly(methyl methacrylate)/poly(vinyl chloride) blends
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间规聚甲基丙烯酸甲酯/聚氯乙烯共混物的相容性研究
DOI：
10.1021/ma00145a015
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发表时间：
1985
期刊：
影响因子：
5.5
通讯作者：
V. Mcbrierty
中科院分区：
文献类型：
--
作者：
B. Albert;R. Jerome;P. Teyssie;G. Smyth;N. G. Boyle;V. Mcbrierty
描述了 s-PMMA 和 PVC 共混物的脉冲 NMR 和非辐射能量转移 (NRET) 测量。讨论了所有混合物中明显的小规模异质性的来源。尽管不可能得出这种小尺度异质性的明确模型，但考虑了对所实现的混溶性有重要影响的因素：（i）所用的混合方法和所用研究技术的相对灵敏度，（ii）立构规整度、分子量和多分散性对聚合物-聚合物混溶性的影响，以及（iii）PVC对PMMA和PMMA对PVC的溶解能力的差异。
Pulsed NMR and nonradiative energy transfer (NRET) measurements on blends of s-PMMA and PVC are described. Sources of the small-scale heterogeneity evidentin all blends are discussed. Although it was not possible to arrive at a definitive model of this small-scale heterogeneity, consideration was given to factors which had important bearing on the miscibility achieved:(i) the method of mixing used andthe relative sensitivity of the investigative techniques used,(ii) theeffects of tacticity, molecular weight, and polydispersity on polymer-polymer miscibility, and (iii) the difference in the solubilization power of PVC for PMMA and PMMA for PVC.