P. Dvornic, R. Lenz
Sep 1, 1994
Citations
0
Influential Citations
20
Citations
Journal
Macromolecules
Abstract
Six exactly alternating, silphenylene-siloxane polymers containing either 3,3,3-trifluoropropyl, tridecafluoro-1,1,2,2-tetrahydrooctyl, hydrido, methyl, or vinyl substituent groups on the siloxyl silicons were prepared by low-temperature, solution polycondensation reactions of 1,4-bis(dimethylhydroxysilyl)benzene, DMHSB, and the respective dichlorosilane monomers. The polymers with tridecafluoro-1,1,2,2-tetrahydrooctyl substituents showed two T g 's, and the higher transition at -37°C was attributed to the mobility of the highly fluorinated substituents