SYNTHESIS AND STRUCTURAL STUDIES OF SIDE CHAIN LIQUID CRYSTALLINE POLYACRYLATES CONTAINING PARA-NITRO AZOBENZENE—Ⅱ.THE EFFECT OF MOLECULAR STRUCTURE ON Tg

Chinese Journal of Applied Chemistry ›› 1993, Vol. 0 ›› Issue (4): 43-46.

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SYNTHESIS AND STRUCTURAL STUDIES OF SIDE CHAIN LIQUID CRYSTALLINE POLYACRYLATES CONTAINING PARA-NITRO AZOBENZENE—Ⅱ.THE EFFECT OF MOLECULAR STRUCTURE ON T_g

Li Min, Li Hongyun, Zhou Enle, Xu Jiping

Polymer Physics Laboratory of Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun

Received:1992-12-25 Revised:1993-04-12 Published:1993-08-10 Online:1993-08-10

Abstract

Abstract: The glass-transition temperatures of the side chain liquid crystalline polyacrylates containing para-nitro azobenzene have been studied by DSC. It was found that the T_g value decreased with increasing the length of the spacer and MA content in the copolymers. But for the copolymers containing acrylic acid the T_g is higher than that of the corresponding homopolymers owing to the presence of hydrogen bond.

Key words: polyacrylate liquid crystalline, copolymer, glass transition temperature

Li Min, Li Hongyun, Zhou Enle, Xu Jiping. SYNTHESIS AND STRUCTURAL STUDIES OF SIDE CHAIN LIQUID CRYSTALLINE POLYACRYLATES CONTAINING PARA-NITRO AZOBENZENE—Ⅱ.THE EFFECT OF MOLECULAR STRUCTURE ON T_g[J]. Chinese Journal of Applied Chemistry, 1993, 0(4): 43-46.

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SYNTHESIS AND STRUCTURAL STUDIES OF SIDE CHAIN LIQUID CRYSTALLINE POLYACRYLATES CONTAINING PARA-NITRO AZOBENZENE—Ⅱ.THE EFFECT OF MOLECULAR STRUCTURE ON T_g

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