Accession Number : AD0676432

Title :   FLUORINE MAGNETIC RESONANCE SPECTRA AND TACTICITIES OF POLY(VINYL TRIFLUOROACETATE),

Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF APPLIED CHEMISTRY

Personal Author(s) : Fujii,K. ; Brownstein,S. ; Eastham,A. M.

Report Date : 1968

Pagination or Media Count : 10

Abstract : Fluorine magnetic resonance spectra of poly(vinyl trifluoroacetate) samples of different tacticities were investigated, along with those of model compounds. These polymers represent the first case where the line order in respect to stereostructure does not agree with that expected from the spectra of model compounds. More than four peaks were observed for signals from the trifluoromethyl groups of the polymers and the relative peak positions differed from those previously reported. The intensity ratios of the peaks were affected by the solvent employed. Therefore the spectra cannot be interpreted in terms of triad stereosequences. Seemingly longer stereosequences or other influences have to be considered to interpret the spectra. (Author)

Descriptors :   (*VINYL PLASTICS, *NUCLEAR MAGNETIC RESONANCE), (*FLUORINE COMPOUNDS, NUCLEAR MAGNETIC RESONANCE), HALOGENATED HYDROCARBONS, STEREOCHEMISTRY, VINYL ALCOHOL, ACETYLATION, INFRARED SPECTRA, CANADA

Subject Categories : Plastics
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE