| Stannous oxalate as a novel catalyst for the synthesis of polytrimethylene terephthalate |
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| 作者姓名： | Yu Rong Ren Shu Yong Jia Shou Cai Zhang Chun Ling Liu Yun Cheng Cui |
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| 作者单位： | Yu Rong Ren，Shu Yong Jia，Shou Cai Zhang，Chun Ling Liu，Yun Cheng Cui * Department of Chemistry，Jilin Normal University，Siping 136000，China |
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| 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°C after 1.5 h, while the intrinsic viscosity and content of terminal carboxyl groups of the corresponding PTT polyester, polymerized at 260°C, 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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| 关 键 词： | 聚三甲烯 对苯二酸酯 聚酯 草酸锡 酯化作用 |
| 收稿时间： | 29 November 2006 |
| 修稿时间： | 2006-11-29 |
Stannous oxalate as a novel catalyst for the synthesis of polytrimethylene terephthalate |
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| 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. |
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| Authors: | Yu Rong Ren Shu Yong Jia Shou Cai Zhang Chun Ling Liu Yun Cheng Cui |
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| Institution: | Department of Chemistry, Jilin Normal University, Siping 136000, China |
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| Abstract: | 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 °C after 1.5 h, while the intrinsic viscosity and content of terminal carboxyl groups of the corresponding PTT polyester, polymerized at 260 °C, 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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| Keywords: | Polytrimethylene terephthalate Polyester Stannous oxalate Esterification-route Intrinsic viscosity |
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