摘要
利用芳－脂复合二酰氯和四种芳族二元胺合成了３个系列含有两种芳香二胺结 构单元的无规芳－脂共聚酯酰胺，其对数比浓粘度为 １．３０～２．１８ ｄＬ／ｇ。用偏光显微镜、 Ｘ光衍射和ＤＳＣ对聚合物的液晶行为进行了研究。
The complex diacid chloride and four kinds of aromatic diamines were used for the synthesis of aromatic-aliphatic copolyesteramide (PEA). Three series of thermotropic liquid crystals were prepared by low temperature solution polycondensation. The inherent viscosity of these PEAs obtained was 1.30-2.18 dL/g. The thermotropic nematic liquid crystalline behaviour of these PEAS was characterized by polarizing microscope, X-ray diffraction and DSC. The Tm and Td depended on the ratio of the amount of phenylenediamine and another aromatic diamine used in the polycondensation.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
1990年第3期47-53,共7页
Journal of Tsinghua University(Science and Technology)
关键词
聚酯酰胺
液晶
热致液晶
向列型
aromatic-aliphatic copolyesteramide, liquid crystalline behaviour, thermotropic liquid crystal, nematic liquid crystal
