ISSN:
0959-8103
Keywords:
Cyanopolysiloxane
;
poly[2,2-dicyanotrimethylene)dimethylsiloxane]
;
poly(4,4-dicyano-2,6-dihydroxy-2,6-dimethyl-2,6-disilaheptane)
;
poly[(2,2-dicyanopentamethylene)dimethylsiloxane]
;
poly(6,6-dicyano-2,10-dihydroxy-2,10-dimethyl-2,10-disilaheptane; triphosgene
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Two new cyanosilicones, poly[(dicyanopropyl)dimethylsiloxane] A and poly[(dicyanopentyl)dimethylsiloxane] B, have been synthesised by reaction of the corresponding disilanols with phosgene generated in situ from triphosgene. Both polymers show glass-to-rubber transitions at about 250K and crystalline melting points at about 310K. Polymers A and B undergo thermal decomposition at 410 and 550K respectively.
Additional Material:
1 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pi.1994.210350302
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