Synthesis and characterization of new silicon-containing poly(arylene-1,3,4-oxadiazole)s
1995 ◽
Vol 7
(4)
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pp. 493-501
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Keyword(s):
New silicon-containing aromatic polyhydrazides were synthesized by low-temperature solution polycondensation reaction of bis(p-chlorocarbonylphenyl)diphenylsilane with various aromatic dihydrazides, or of bis(p-carbohydrazidophenyl)diphenylsilane with diacid chlorides. The corresponding poly(arylene-1,3,4-oxadiazole)s wvere prepared by thermal cyclodehydration in the solid state. The cyclization process takes place at temperatures in the range of 250-300 IC. The resulting silicon-containing poly(arylene-1,3,4-oxadiazole)s are soluble in common organic solvents and have good film-forming abilities. They are stable up to 420-480 'C and their glass transition temperature is in the range of 262-278C.
2013 ◽
Vol 1
(19)
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pp. 6063
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2018 ◽
Vol 18
(3)
◽
pp. 54-67
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2014 ◽
Vol 32
(5)
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pp. 577-586
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