Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1256046 | Chinese Chemical Letters | 2007 | 4 Pages |
Abstract
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 terminal 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.
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Authors
Shu Yong Jia, Yu Rong Ren, Liang Ming Liu, Dan Zhang, Yi Zeng, Gong Ying Wang,