EFFECT OF SOLVENT SYSTEM IN SOLUTION POLYCONDENSATION ON SEQUENCE STRUCTURE OF LYOTROPIC LIQUID CRYSTALLINE AROMATIC-ALIPHATIC COPOLYAMIDES

LIU De-shan; GU Li-guang; WANG Xiao-gong; WANG Hui-fen; WANG Wei; ZHOU Qi-xiang

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EFFECT OF SOLVENT SYSTEM IN SOLUTION POLYCONDENSATION ON SEQUENCE STRUCTURE OF LYOTROPIC LIQUID CRYSTALLINE AROMATIC-ALIPHATIC COPOLYAMIDES

Research Article | 更新时间：2021-03-19

- EFFECT OF SOLVENT SYSTEM IN SOLUTION POLYCONDENSATION ON SEQUENCE STRUCTURE OF LYOTROPIC LIQUID CRYSTALLINE AROMATIC-ALIPHATIC COPOLYAMIDES
- Acta Polymerica Sinica Issue 6, Pages: 704-708(1995)
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- Published：20 December 1995，
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LIU De-shan, GU Li-guang, WANG Xiao-gong, WANG Hui-fen, WANG Wei, ZHOU Qi-xiang. EFFECT OF SOLVENT SYSTEM IN SOLUTION POLYCONDENSATION ON SEQUENCE STRUCTURE OF LYOTROPIC LIQUID CRYSTALLINE AROMATIC-ALIPHATIC COPOLYAMIDES. [J]. Acta Polymerica Sinica (6):704-708(1995)
DOI：

LIU De-shan, GU Li-guang, WANG Xiao-gong, WANG Hui-fen, WANG Wei, ZHOU Qi-xiang. EFFECT OF SOLVENT SYSTEM IN SOLUTION POLYCONDENSATION ON SEQUENCE STRUCTURE OF LYOTROPIC LIQUID CRYSTALLINE AROMATIC-ALIPHATIC COPOLYAMIDES. [J]. Acta Polymerica Sinica (6):704-708(1995) DOI：

摘要

本文研究了以对苯二甲酰氯、对苯二胺和乙二胺三元共缩聚物为代表的芳－脂族共聚酰胺低温溶液缩聚中的溶剂、助溶剂（盐）和酸吸收剂等对共聚酰胺链序列结构参数－无规度（Ｂ）和数均序列长度（Ｌ）－的影响．

Abstract

he aromatic-aliphahc copolyamide based on terephthalyl chloride (TPC)

p-phenylenediamine (PPD) and 1

6-hexanediandne (HDA) was synthesis by low temperature solution copolycondensahon in abide-salt solvent system. The effeCts of the add accepters (AA) and each components of the amide-salt solvent system on the sequence structure

random degree (B) and number average sequence length (Ln)

were studied. In order to obtain the aromatic-aliphahc copolyandde with higher B and less Ln

the pKa of AA usually has to be similar to the pKa of diamines used as monomers and the ε and DN of solevents used should be higher and the amount of the salt used must be reasonable in polycondensation system.

关键词

芳香－脂肪族共聚酰胺序列结构酸吸收剂酰胺－盐溶剂体系

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