ISSN:
0025-116X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
A large number of new liquid-crystalline 1-alkenes with various mesogenic groups based on substituted phenyl benzoate or biphenyl and with different spacer lengths (2-10 methylene groups) were synthesized and copolymerized with sulfur dioxide by free-radical initiation to produce alternating polysulfones with liquid-crystalline side chains. The phase transition temperatures of the 1-alkenes and polysulfones were determined; their clearing temperatures lie in the ranges 43-138°C and 89-194°C, respectively. The liquid-crystalline phases of the polysulfones, as determined by means of X-ray diffraction, show a great variation, i.e. cholesteric and nematic as well as various smectic phases were obtained.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/macp.1993.021941004
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