| 草酸亚锡催化合成PTT的研究 |
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| 引用本文： | 贾树勇,张丹,胡静,曾毅,王公应.草酸亚锡催化合成PTT的研究[J].合成纤维工业,2007,30(3):3-6. |
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| 作者姓名： | 贾树勇 张丹 胡静 曾毅 王公应 |
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| 作者单位： | 1. 中国科学院成都有机化学研究所,成都,610041;中国科学院研究生院,北京,100039
2. 中国科学院成都有机化学研究所,成都,610041 |
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| 基金项目： | 国科学院研究生科学与社会实践资助专项(创新研究类) |
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| 摘 要： | 采用对苯二甲酸(PTA)和1,3-丙二醇(1,3-PDO)为原料,以自制的草酸亚锡为催化剂经酯化、缩聚,制得聚对苯二甲酸丙二醇酯(PTT)。探讨了反应条件对合成反应的影响。结果表明:草酸亚锡的催化活性优于丁基锡酸和辛酸亚锡。1,3-PDO／PTA的摩尔比为1．5／1、草酸亚锡用量为5×10-4mol／mol(相对PTA),酯化反应温度260℃,反应时间2 h;缩聚反应温度260℃,反应时间2 h,可制得PTT,其特性粘数为0．8950dL／g,端羧基含量为15 mol／t。
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| 关 键 词： | 聚对苯二甲酸丙二醇酯 草酸亚锡 1 3-丙二醇 酯化法 合成 |
| 文章编号： | 1001-0041（2007）03-0003-04 |
| 修稿时间： | 2006-12-29 |
Synthesis of poly (trimethylene terephthalate) catalyzed with stannous oxalate |
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| Jia Shuyong,Zhang Dan,Hu Jing,Zeng Yi,Wang Gongying.Synthesis of poly (trimethylene terephthalate) catalyzed with stannous oxalate[J].China Synthetic Fiber Industry,2007,30(3):3-6. |
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| Authors: | Jia Shuyong Zhang Dan Hu Jing Zeng Yi Wang Gongying |
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| Affiliation: | 1. Chengdu Institute of Organic Chemistry, Chinese Academy ofScienees, Chengdu 610041 ; 2. Graduate School of Chinese Academy of Science, Beijing 100039 |
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| Abstract: | Poly(trimethylene terephthalate) (PTT) was prepared from purified terephthalic acid (PTA) and 1,3-propanediol with self-made stannous oxalate as catalyst via esterification and polycondensation. The effects of reaction conditions on the synthesis were discussed. The results showed that stannous oxalate had higher catalytic activity than butylstannic acid and stannous octoate. The PTT with intrinsic viscosity 0. 895 0 dL/g and carboxy terminal group content of 15 mol/t can be produced under the conditions as followed; molar ratio of 1,3-propanediol to PTA of 1. 5 : 1 , stannous oxalate content based on 1 mol PTA of 5×10-4 mol, esterification temperature 260℃and time 2 h, polycondensation temperature 260℃and time 2 h. |
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| Keywords: | poly(trimethylene terephthalate) stannous oxalate 1 3-propanediol esterification process synthesis |
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