Citation: Shu Yong Jia, Yu Rong Ren, Liang Ming Liu, Dan Zhang, Yi Zeng, Gong Ying Wang. Stannous-acetylacetonate: A new catalyst for poly(trimethylene terephthalate) synthesis[J]. Chinese Chemical Letters, ;2007, 18(7): 827-830. doi: 10.1016/j.cclet.2007.05.019 shu

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

a Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China;
b College of Chemistry, Jilin Normal University, Siping 136000, China;
c Graduate University of Chinese Academy of Sciences, Beijing 100039, China

Received Date: 27 February 2007

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℃ for 2 h, while the intrinsic viscosity and content of terminal carboxyl groups of the corresponding PTT polymerized at 260℃, 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.
- Poly(trimethylene terephthalate),
- Stannous-acetylacetonate,
- 1, 3-Propanediol
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