摘要
利用阿贝折光仪、偏光显微镜、小角光散射仪等手段系统地考察了乙基纤维素／丙烯酸（ＥＣ／ＡＡ）体系的各种织构形式和光散射图形，并对其内部结构进行了分析。
Phase behavior of ethylcellulose/acrylic acid (EC/AA) liquid crystal was studied by using Abbe refractometer,polarized microscope (PLM) and small angle light scattering (SALS) technique. It has been determined that the critical concentrations C_a and C_b for this system were respecitively 0.69 g/mL and 0.72 g/mL.The textures of disk-like and honeycomb-like aggregates, finger-print and oriented stripes, Shileren ,polygonal and alternative polarized field and plannar texture were observed in the cholesteric system and banded textrue otherved in the oriented state.SALS images of above textures were mixtures of four-leaf pattern, which assumed to result from focnic structure, and circular bright spot, which assumed to result from plannar structure.It is assumed that disk-like aggregates were the basic units of focnic structure.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1995年第4期71-76,共6页
Polymer Materials Science & Engineering
关键词
乙基纤维
液晶
丙烯酸
相行为
s: ethylcellulose liquid crystal , cholesteric phase,texture,small angle light scanttering,critical concentration
