GU Li-guang, LIU De-shan, WANG Xiao-gong, YANG Cui-rong, ZHOU Qi-xiang. SEQUENCE STRUCTURE AND LYOTROPIC LIQUID CRYSTALLINE PROPERTIES OF AROMATIC-ALIPHATIC COPOLYAMIDES[J]. Acta Polymerica Sinica, 1994,(1):65-69.
GU Li-guang, LIU De-shan, WANG Xiao-gong, YANG Cui-rong, ZHOU Qi-xiang. SEQUENCE STRUCTURE AND LYOTROPIC LIQUID CRYSTALLINE PROPERTIES OF AROMATIC-ALIPHATIC COPOLYAMIDES[J]. Acta Polymerica Sinica, 1994,(1):65-69.DOI:
n present paper the aromatic-aliphatic copolyamides with different sequencestructure were synthesize from tefrphthalyl chloride (TPC)
p-phenylenediamine (PPD ) and aliphatic diamine (ADA
H2N - (CH2)n -NH2
n=2
6 ). The relationship between sequence structure of copolyamides
includingrandom degree (B) and number average sequence length (Ln)
and the lyotropicliquid crystalline properties
including critical concentration (C*) and the type ofmesogenic phase was studied. The results show that the critical concentration of the liquid crystalline copolyamides increses with the raise of B and decress of Ln and the mesogenic phases of copoly amides transform from nematic to smectic as the LnA/LnP is approximately equal to 0.20.