摘要
乙基氰乙基纤维素 [(E -CE)C]/聚丙烯酸 [PAA]分子复合物通过用光引发聚合乙基氰乙基纤维素 /丙烯酸胆甾型液晶溶液中的丙烯酸得到。在 (E -CE)C/PAA分子复合物中 ,PAA在水中的溶胀影响到胆甾型液晶相结构。胆甾型液晶相选择性反射光的波长随着PAA的溶胀向长波方向位移。同时还发现 ,在PAA溶胀过程中胆甾型液晶相的螺距增加 ,取向分子层之间的距离减小。
Crosslinked molecular composites of ethyl-cyanoethyl cellulose /polyacrylic acid with different colors was prepared by photopolymerizing the PAA in the lyotropic liquid crystalline solution.The cholesteric order was influenced by swelling of the PAA in water.The color of the cholesteric phase was shifted from blue to red with the increasing ratio of swelling.In addition, the pitch of the cholesteric phase increased and the distance between the ordered molecular layers within a pitch decreased with the swelling of the PAA in water.
出处
《纤维素科学与技术》
CAS
CSCD
2000年第4期1-6,共6页
Journal of Cellulose Science and Technology
基金
国家自然科学基金
国家基础性研究重大关键项目 -高分子凝聚态基本物理问题研究
中国科学院高分子物理联合开放实验室资助课题
关键词
胆甾型液晶结构
乙基氰乙基纤维素
溶胀
溶剂
cholesteric order,molecular composites,ethyl-cyanoethyl cellulose and swelling
