Synthesis of Poly(butylene terephthalate)-Poly(tetramethylene glycol) Copolymers Using Terephthalic Acid as Starting Material: A Comparation between Two Synthetic Strategies

Jun-wu Zhang; Fei Liu; Jing-gang Wang; Hai-ning Na; Jin Zhu

doi:10.1007/s10118-015-1673-4

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Synthesis of Poly(butylene terephthalate)-Poly(tetramethylene glycol) Copolymers Using Terephthalic Acid as Starting Material: A Comparation between Two Synthetic Strategies

PAPER | Updated：2021-06-21

- Synthesis of Poly(butylene terephthalate)-Poly(tetramethylene glycol) Copolymers Using Terephthalic Acid as Starting Material: A Comparation between Two Synthetic Strategies
- Synthesis of Poly(butylene terephthalate)-Poly(tetramethylene glycol) Copolymers Using Terephthalic Acid as Starting Material: A Comparation between Two Synthetic Strategies
- Chinese Journal of Polymer Science 2015年33卷第9期页码：1283-1293
- Affiliations：
  
  Ningbo Key Laboratory of Polymer Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Author bio：
  
  **Hai-ning Na (那海宁), E-mail: nahaining@nimte.ac.cn
  Jin Zhu (朱锦), E-mail: jzhu@nimte.ac.cn
- Funds：
  
  Key Research Program of the Chinese Academy of Sciences(KGZD-EW-606-16);Ningbo Key Lab of Polymer Materials(2010A22001);Ningbo Natural Science Foundation(2013A610025;2013A610023;2014A610135)
- DOI：10.1007/s10118-015-1673-4
  中图分类号：
- 收稿：2015-01-29，
  
  修回：2015-03-08，
  
  录用：2015-03-28，
  
  纸质出版：2015-09
- Accepted：
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Jun-wu Zhang, Fei Liu, Jing-gang Wang, 等. Synthesis of Poly(butylene terephthalate)-Poly(tetramethylene glycol) Copolymers Using Terephthalic Acid as Starting Material: A Comparation between Two Synthetic Strategies[J]. Chinese Journal of Polymer Science, 2015,33(9):1283-1293.

Jun-wu Zhang, Fei Liu, Jing-gang Wang, et al. Synthesis of Poly(butylene terephthalate)-Poly(tetramethylene glycol) Copolymers Using Terephthalic Acid as Starting Material: A Comparation between Two Synthetic Strategies[J]. Chinese Journal of Polymer Science, 2015, 33(9): 1283-1293.
Jun-wu Zhang, Fei Liu, Jing-gang Wang, 等. Synthesis of Poly(butylene terephthalate)-Poly(tetramethylene glycol) Copolymers Using Terephthalic Acid as Starting Material: A Comparation between Two Synthetic Strategies[J]. Chinese Journal of Polymer Science, 2015,33(9):1283-1293. DOI： 10.1007/s10118-015-1673-4.

Jun-wu Zhang, Fei Liu, Jing-gang Wang, et al. Synthesis of Poly(butylene terephthalate)-Poly(tetramethylene glycol) Copolymers Using Terephthalic Acid as Starting Material: A Comparation between Two Synthetic Strategies[J]. Chinese Journal of Polymer Science, 2015, 33(9): 1283-1293. DOI： 10.1007/s10118-015-1673-4.

摘要

Abstract

Poly(butylene terephthalate)-poly(tetramethylene glycol) (PBT-PTMG) copolymer is prepared with terephthalic acid (PTA) rather than its dimethyl ester (DMT) as starting material by a two-step melt polycondensation. This process includes the synthesis of PBT prepolymer from PTA with 1

4-butanediol (BDO) in the first step

followed by the synthesis of PBT-PTMG copolymer from PBT prepolymer with PTMG in the second step. The molecular weight

composition as well as thermal and mechanical properties of the products from the two-step melt polycondensation are compared with the properties of the PBT-PTMG from the traditional one-step melt polycondensation. When the PTMG content is low

there is only slight difference in molecular weight

composition

thermal and mechanical properties among PBT-PTMG copolymers obtained from these two methods. However

when the PTMG content is high

only the two-step strategy is able to give high molecular weight products

and the products have comparable thermal and mechanical properties with those from traditional one-step strategy using DMT as starting material.

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