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首页> 外文期刊>Journal of Applied Polymer Science >Enhancement of the high-temperature utility of a polystyrene-b-poly(ethylene-co-butylene)-b-polystyrene block copolymer by Friedel-Crafts naphthoylation
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Enhancement of the high-temperature utility of a polystyrene-b-poly(ethylene-co-butylene)-b-polystyrene block copolymer by Friedel-Crafts naphthoylation

机译：Friedel-Crafts萘甲酰基化​​提高聚苯乙烯-b-聚（乙烯-丁烯）-b-聚苯乙烯嵌段共聚物的高温实用性

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摘要

A procedure was developed for the Friedel-Crafts naphthoylation of the polystyrene segments of a polystyrene-b-poly(ethylene-co-butene)-b-polystyrene (SEBS) triblock copolymer. It was possible to obtain up to 72% 1-naphthoylation or 100% 2-naphthoylation of the polystyrene segments in the copolymer. Naphthoylation could also be accomplished using trifluoromethanesulfonic acid as a catalyst. The naphthoylated products were characterized by H-1-NMR spectroscopy, size-exclusion chromatography, and dynamic mechanical thermal analysis. The mechanical properties of the original and naphthoylated polymers were measured from 25 to 125degreesC. The results obtained indicate that naphthoylation enhances the tensile properties of the polymers at elevated temperatures. (C) 2003 Wiley Periodicals, Inc. [References: 16]
机译：开发了一种用于聚苯乙烯-b-聚（乙烯-共-丁烯）-b-聚苯乙烯（SEBS）三嵌段共聚物的聚苯乙烯链段的弗瑞德-克来福特萘甲酰化的方法。共聚物中的聚苯乙烯链段可以得到高达72％的1-萘甲酰基化​​或100％的2-萘甲酰基化​​。萘甲酰化也可以使用三氟甲磺酸作为催化剂来完成。萘甲酰化产物通过H-1-NMR光谱，尺寸排阻色谱和动态机械热分析进行表征。原始和萘甲酸酯化聚合物的机械性能是在25至125℃下测量的。获得的结果表明，萘甲酰基化​​提高了聚合物在高温下的拉伸性能。 （C）2003 Wiley Periodicals，Inc. [参考：16]

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