Stannous oxalate as a novel catalyst for the synthesis of polytrimethylene terephthalate

Yu Rong Ren Shu Yong Jia Shou Cai Zhang Chun Ling Liu Yun Cheng Cui

引用本文: Yu Rong Ren,  Shu Yong Jia,  Shou Cai Zhang,  Chun Ling Liu,  Yun Cheng Cui. Stannous oxalate as a novel catalyst for the synthesis of polytrimethylene terephthalate[J]. Chinese Chemical Letters, 2007, 18(7): 872-874. doi: 10.1016/j.cclet.2007.03.012 shu
Citation:  Yu Rong Ren,  Shu Yong Jia,  Shou Cai Zhang,  Chun Ling Liu,  Yun Cheng Cui. Stannous oxalate as a novel catalyst for the synthesis of polytrimethylene terephthalate[J]. Chinese Chemical Letters, 2007, 18(7): 872-874. doi: 10.1016/j.cclet.2007.03.012 shu

Stannous oxalate as a novel catalyst for the synthesis of polytrimethylene terephthalate

摘要: Stannous oxalate was prepared efficiently and characterized by XRD and FT-IR. It exhibited higher catalytic activity and had profitable effect than tetrabutyl titanate and stannous octoate for the synthesis of polytrimethylene terephthalate (PTT) via esterification-route. Over this catalyst, the degree of esterification of pure terephthalic acid was up to 94.4% at 260℃ after 1.5 h, while the intrinsic viscosity and content of terminal carboxyl groups of the corresponding PTT polyester, polymerized at 260℃, 60 Pa for 2 h, was 0.8950 dL/g and 15 mol/t, respectively. Stannous oxalate was a promising catalyst for the synthesis of PTT polyester.

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  • 收稿日期:  2006-11-29
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