Stannous-acetylacetonate:A new catalyst for poly(trimethylene terephthalate) synthesis

查看全文 作　　者：Shu Yong [1,3]Jia;Yu Rong [2]Ren;Liang Ming [1]Liu;Dan [1,3]Zhang;Yi [1]Zeng;Gong Ying [1]Wang

机构地区：[1]Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China;[2]College of Chemistry, Jilin Normal University, Siping 136000, China;[3]Graduate University of Chinese Academy of Sciences, Beijing 100039, China

出　　处：《Chinese Chemical Letters》索引2007年第18卷第7期,共4页

摘　　要：Stannous-acetylacetonate was prepared efficiently and characterized by 1H NMR and FT-IR. Its catalytic activity for poly(trimethylene terephthalate) (PTT) synthesis was investigated. By this catalyst, the degree of esterification of pure terephthalic acid was up to 91.7% after reaction at 260°C for 2 h, while the intrinsic viscosity and content of ter- minal carboxyl groups of the corresponding PTT polymerized at 260°C, 60 Pa for 2 h was 0.8816 dL/g and 17 mol/t, respectively. Stannous-acetylacetonate was more active and promising than tetrabutyl titanate and stannous octoate for PTT synthesis. 关键词：聚(三甲烯对苯二酸盐酯) 锡-乙酰丙酮化物 1,3-丙二醇聚合反应

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Stannous-acetylacetonate:A new catalyst for poly(trimethylene terephthalate) synthesis

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