Accession Number : AD0618878

Title :   SYNTHESIS, POLYMERIZATION, AND COPOLYMERIZATION OF POLYORGANOSILOXANES CONTAINING METHACRYLATE GROUPS. II. INVESTIGATION OF POLYMERIZATION AND COPOLYMERIZATION BY MEANS OF IR SPECTRA,

Corporate Author : REDSTONE SCIENTIFIC INFORMATION CENTER REDSTONE ARSENAL ALA

Personal Author(s) : Alekseeva,I. A. ; Semerneva,G. A. ; Samarina,L. A. ; Bulatov,M. A. ; Spasskii,S. S.

Report Date : 03 NOV 1964

Pagination or Media Count : 9

Abstract : By comparing the ratios of the optical densities of absorption bands in the IR spectra of methacrylate polysiloxanes, the percentages of double bonds involved in polymerization and copolymerization reactions were determined. It is shown that with increase of the distance between linkages containing methacrylate groups, the number of reacted double bonds increases in a polymerization. Copolymerization with styrene in all the investigated cases led to practically complete reaction of the double bonds. The use of the indicated ratio of optical densities gives the possibility of determining the number of linkages in a polysiloxane chain containing methacrylate substituents. (Author)

Descriptors :   (*SILICONE PLASTICS, INFRARED SPECTRA), (*SILOXANES, POLYMERS), (*INFRARED SPECTROSCOPY, SILOXANES), ACRYLIC RESINS, POLYMERIZATION, COPOLYMERIZATION, ABSORPTION SPECTRA, BAND SPECTRA, CHEMICAL BONDS, STYRENE PLASTICS, USSR

Distribution Statement : APPROVED FOR PUBLIC RELEASE