โ Scribed by M. M. Murza; M. G. Safarov
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
## Abstract The following is an extended abstract of a paper presented at the conference on Liquid Crystalline Polymers in Leeds, 1980, summarising the principles of the synthesis of thermotropic liquid crystalline polymers, their structure dependant phase behaviour and their orientation in electri
Six series of polycarbonates with flexible spacers have been prepared by melt condensation of aromatic diols such as 4,4'-bis[(2-hydroxyethyl)oxy]biphenyl, 4,4'-bis[(6-hydroxyhexyl)oxy]biphenyl, 1,5-bis[(2-hydroxyethyl)oxy]naphthalene, 1,5-bis[(6-hydroxyhexyl)oxy]naphthalene, 2,6bis[2-hydroxyethyl)o
Novel type of mesogenic chain extenders used in this study are N,Nะ-bis(4hydroxyphenyl)-3,4,3ะ,4ะ-biphenyldicarboxyimide (BPDI) and N, Nะ-bis[4-(6-hydroxyhexyloxy) phenyl]-3,4,3ะ,4ะ-biphenyldicarboxyimide (BHDI). BHDI has a flexible spacer of 6-methylene units but BPDI does not. The liquid crystalli