Liquid crystalline phases given by helical biological polymers (DNA, PBLG and xanthan). Columnar textures
摘要：
The liquid crystalline phases of polymers of biological interest are investigated involving DNA, PBLG and xanthan. These polymers form lystropic liquid crystalline phases whose structures depend on the polymer concentration. New textures - undulating patterns and the helical stacking of hexagonal domains - are described and compared with classical (amphiphilic) lyotropic phases. These new textures are related to the problem of the coexistence of hexagonal and helical ordering. The nucleation and growth of the hexagonal phase within the cholesteric phase were observed in the polarizing microscope. The cores of the defect lines which exist in the cholesteric phase act as nucleation centres and the hexagonal textures formed depend on the nature of the cholesteric textures surrounding them.
展开
关键词：
texture molecular biophysics liquid crystal polymers DNA disclinations cholesteric liquid crystals
DOI：
10.1051/jphys:0198600470100181300
被引量：
年份：
1986
通过文献互助平台发起求助，成功后即可免费获取论文全文。
相似文献
参考文献
引证文献
辅助模式
引用
文献可以批量引用啦~
欢迎点我试用！
