Non-aqueous Suspension Polycondensation in NMP-CaCl2/Paraffin System ― A New Approach for the Preparation of Poly(p-phenylene terephthalamide)

Pei-jian Wang; Kai Wang; Ji-song Zhang; Guang-sheng Luo

doi:10.1007/s10118-015-1607-1

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Non-aqueous Suspension Polycondensation in NMP-CaCl2/Paraffin System ― A New Approach for the Preparation of Poly(p-phenylene terephthalamide)

PAPER | Updated：2021-06-21

- Non-aqueous Suspension Polycondensation in NMP-CaCl2/Paraffin System ― A New Approach for the Preparation of Poly(p-phenylene terephthalamide)
- Non-aqueous Suspension Polycondensation in NMP-CaCl₂/Paraffin System ― A New Approach for the Preparation of Poly(p-phenylene terephthalamide)
- Chinese Journal of Polymer Science 2015年33卷第4期页码：564-575
- Affiliations：
  
  The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
- Author bio：
  
  **Guang-sheng Luo (骆广生), E-mail: gsluo@tsinghua.edu.cn
- Funds：
  
  National Natural Science Foundation of China(U1463208;91334201)
- DOI：10.1007/s10118-015-1607-1
  中图分类号：
- 收稿：2014-07-11，
  
  修回：2014-09-01，
  
  录用：2014-09-02，
  
  纸质出版：2015-04
- Accepted：
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Pei-jian Wang, Kai Wang, Ji-song Zhang, 等. Non-aqueous Suspension Polycondensation in NMP-CaCl2/Paraffin System ― A New Approach for the Preparation of Poly(p-phenylene terephthalamide)[J]. Chinese Journal of Polymer Science, 2015,33(4):564-575.

Pei-jian Wang, Kai Wang, Ji-song Zhang, et al. Non-aqueous Suspension Polycondensation in NMP-CaCl₂/Paraffin System ― A New Approach for the Preparation of Poly(p-phenylene terephthalamide)[J]. Chinese Journal of Polymer Science, 2015, 33(4): 564-575. DOI: 10.1007/s10118-015-1607-1.
Pei-jian Wang, Kai Wang, Ji-song Zhang, 等. Non-aqueous Suspension Polycondensation in NMP-CaCl2/Paraffin System ― A New Approach for the Preparation of Poly(p-phenylene terephthalamide)[J]. Chinese Journal of Polymer Science, 2015,33(4):564-575. DOI： 10.1007/s10118-015-1607-1.

Pei-jian Wang, Kai Wang, Ji-song Zhang, et al. Non-aqueous Suspension Polycondensation in NMP-CaCl₂/Paraffin System ― A New Approach for the Preparation of Poly(p-phenylene terephthalamide)[J]. Chinese Journal of Polymer Science, 2015, 33(4): 564-575. DOI: 10.1007/s10118-015-1607-1. DOI：

摘要

Abstract

A non-aqueous suspension polycondensation method was proposed to proceed the reaction of

-phenylenediamine and terephthaloyl chloride for the preparation of poly(

-phenylene terephthalamide) (PPTA). The system was operated with NMP-CaCl

solution as the dispersed phase and inert liquid paraffin as the continuous phase. Each of NMP-CaCl

solution microdroplet suspended in paraffin served as a microreactor where the polycondensation took place. According to the results of TGA

XRD

SEM and EA

PPTA with good quality was obtained through this novel method

and a number of main factors influencing this process were investigated to determine the optimum condition for the preparation of PPTA. Besides

this two-phase polycondensation system brings many unique advantages compared to the conventional solution polycondensation method

including a sealed reaction environment keeping the reactants away from oxygen and water

easy removal of HCl to promote the reaction

well-controlled temperature and low viscosity which means less energy cost.

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