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Synthesis of Poly(butylene succinate-co-butylene terephthalate) (PBST) Copolyesters with High Molecular Weights via Direct Esterification and Polycondensation
其他题名直接酯化缩合制备高分子量的聚丁二酸丁二醇共聚对苯二甲酸酯
Luo SL(罗胜利); Li FX(李发学); Yu JY(俞建勇); Cao AM(曹阿民)
2010
发表期刊J. Appl. Polym. Sci.
ISSN0021-8995
卷号115期号:4页码:2203-2211
摘要In this article, biodegradable poly(butylene succinate-co-butylene terephthalate) (PBST) copolyesters with high molecular weights were synthesized by direct esterification and polycondensation route. The reaction conditions and catalytic systems were investigated in detail. Through balancing the reaction efficiency and the costs of reactants, the proper molar ratio of diol to diacid was determined. Titanium tetra isopropoxide (TTiPO) was found to be an effective catalyst both in esterification and polycondensation reaction, and its content was optimized based on the esterification ratio and amount of formed by-products. The complex reaction was determined to be the dominant catalytic reaction mechanism. By importing the additives of metal oxides coupled with TTiPO, the weight-average molecular weights of PBST increased sharply from 8.51 x 10(4) to 14.38 x 10(4), manifesting the additives promoted the polymerization reaction greatly. The enhancement of carbonyl polarization and provision of suitable reaction space arose from the metal oxides were the reasons for promoting the polymerization reaction. With respect to thermal properties, the same melting point and heat of fusion were found, while thermal stability increased with the import of additives. The result was prone to be interpreted by the higher molecular weights of PBST in the presence of additives. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 115: 2203-2211, 2010
学科领域高分子化学
部门归属东华大学; 中国科学院上海有机化学研究所
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收录类别SCI
语种英语
WOS记录号WOS:000272893400036
引用统计
被引频次:32[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sioc.ac.cn/handle/331003/22956
专题高分子材料研究室
通讯作者Li FX(李发学); Yu JY(俞建勇)
推荐引用方式
GB/T 7714
Luo SL,Li FX,Yu JY,et al. Synthesis of Poly(butylene succinate-co-butylene terephthalate) (PBST) Copolyesters with High Molecular Weights via Direct Esterification and Polycondensation[J]. J. Appl. Polym. Sci.,2010,115(4):2203-2211.
APA 罗胜利,李发学,俞建勇,&曹阿民.(2010).Synthesis of Poly(butylene succinate-co-butylene terephthalate) (PBST) Copolyesters with High Molecular Weights via Direct Esterification and Polycondensation.J. Appl. Polym. Sci.,115(4),2203-2211.
MLA 罗胜利,et al."Synthesis of Poly(butylene succinate-co-butylene terephthalate) (PBST) Copolyesters with High Molecular Weights via Direct Esterification and Polycondensation".J. Appl. Polym. Sci. 115.4(2010):2203-2211.
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