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New poly(carbosilane) models. 4. Derivatization of linear poly((methylchlorosilylene)methylene): Application to the synthesis of functional poly(carbosilanes) possessing a poly((methylsilylene)methylene) backbone

Journal Article · · Chemistry of Materials; (USA)
DOI:https://doi.org/10.1021/cm00014a028· OSTI ID:5492383
; ; ; ;  [1]; ;  [2]
  1. Universite Bordeaux, Talence (France)
  2. Laboratoire des Composits Thermostructuraux, Pessac (France)

To study the mechanisms of pyrolysis of poly(carbosilanes), as well as the effect of the structure of thee precursors upon properties of the resulting ceramics, novel organosilicon polymers with well-defined skeletons were prepared. Thus, linear poly(carbosilanes) formed of exactly alternate silicon atoms and methylene groups were synthesized. Owing to the presence of functional groups on silicon centers, cross-linking of these compounds was then investigated according to chemical routes, by creating disilane, disilazane, disiloxane, and hydrocarbon bridges between different poly(carbosilanic) sites. These polymers were characterized by physicochemical methods (IR, NMR, GPC, and TGA).

OSTI ID:
5492383
Journal Information:
Chemistry of Materials; (USA), Journal Name: Chemistry of Materials; (USA) Vol. 3:2; ISSN CMATE; ISSN 0897-4756
Country of Publication:
United States
Language:
English