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, 1995,(6):704-708.
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, 1995,(6):704-708.DOI:
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.