申请人:Fluorochem, Inc.
公开号:US05166313A1
公开(公告)日:1992-11-24
The present invention comprises diamantane groups interspersed among benzothiazole groups, benzoxazole groups or benzimidazole groups. This constitutes a rigid-rod polymer with stable cycloaliphatic groups interspersed into the aromatic-heteroaromatic backbone of the rods. The presence of the aliphatic groups decreases crystallinity by adding disorder to the rods thus minimizing interactions between the heteroaromatic groups. The interspersed aliphatic groups act as insulators and thus permit greater relative protonation. Also, the reduced conjugation of the aromatic-heteroaromatic rings reduces the color of the polymers. The preferred method of manufacturing this improved rigid-rod polymer is by condensation of dimethyl diamantanecarboxylate with 2,5-diamino-1,4-benzenedithiol, 1,2,4,5-tetraaminobenzene, or 4,6-diamino-1,3-benzenediol.
本发明包括分散在苯并噻唑基团、苯并噁唑基团或苯并咪唑基团之间的二莰基团。这构成了一种刚性杆聚合物,其中稳定的环烷基团穿插在杆的芳香-杂芳骨架中。脂肪族基团的存在通过向杆中添加无序性来降低结晶度,从而使杂芳基团之间的相互作用最小化。穿插的脂肪族基团起着绝缘体的作用,因此允许更大的相对质子化。此外,芳香-杂芳环的共轭减少了聚合物的颜色。制造这种改进的刚性杆聚合物的首选方法是将二甲基二莰基酸酯与2,5-二氨基-1,4-苯二硫醇、1,2,4,5-四氨基苯或4,6-二氨基-1,3-苯二酚缩合。