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首页> 外文期刊>Journal of Applied Polymer Science >Compatibility and Biodegradability of PMMA-Starch Cinnamate Blends in Various Solvents
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Compatibility and Biodegradability of PMMA-Starch Cinnamate Blends in Various Solvents

机译：各种溶剂中PMMA淀粉肉桂酸酯共混物的相容性和生物降解性

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摘要

The compatibility of PMMA and starch cinnamate (STCN) blends prepared in tetrahydrofuran. 1,4-dioxane, and N,N-dimethylformamide has been examined through viscometry at 30 deg C. From the intrinsic viscosity, relative viscosity, reduced viscosity, and density measurements, the blends of the two polymers were observed to be compatible in all three solvents. The compatibility of the blends was also confirmed through FTIR and SEM studies. The blends were observed to be compatible on the basis of heat of mixing, but they were observed to be incompatible on the basis of polymer-polymer interaction parameters. Results obtained show that the compatibility predicted on the basis of viscometric and density measurements is not affected by the choice of solvents. Biodegradation studies showed 13% weight loss within 120 days in the case of the blend containing 30% STCN.
机译：在四氢呋喃中制备的PMMA与肉桂酸淀粉（STCN）共混物的相容性。已通过在30摄氏度下的粘度测定法检查了1,4-二恶烷和N，N-二甲基甲酰胺。从特性粘度，相对粘度，比浓粘度和密度测量结果中，观察到两种聚合物的共混物在所有三种溶剂。共混物的相容性也通过FTIR和SEM研究得到证实。在混合热的基础上观察到共混物是相容的，但是在聚合物-聚合物相互作用参数的基础上观察到它们是不相容的。所得结果表明，根据粘度和密度测量结果预测的相容性不受溶剂选择的影响。生物降解研究表明，如果掺混物含有30％STCN，则在120天内重量减少了13％。

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