INFRARED SPECTRA AND ASSIGNMENTS FOR POLYVINYL CHLORIDE AND DEUTERATED ANALOGS
Deuterated analogs of polyvinyl chloride (PVC) were prepared and their infrared spectra analyzed as an aid to the more detailed assignment of bands in the spectrum of PVC. The deuterated polymers studied were: PVC- alpha d/sub 1/, PVC- BETA d/sub 1/, PVC- alpha BETA d/sub 2/, and PVC-d/sub 3/. These, as well as PVC, were polymerized in urea-complex, at --78 and +50 deg C in order to determine which bands are of crystalline origin and which of noncrystalline origin. Polarized spectra of oriented samples were obtained in each case to assist in the analysis. As a result of the study several previously uncertain assignments were clarified. With the help of other studies on model chlorine- containing compounds it was possible to identify the various conformations present in the polymer and to associate these with isotactic and syndiotactic pair configurations in the chain. A method is suggested for determining the proportion of each type of pair configuration in PVC. (auth)
- Research Organization:
- Univ. of Michigan, Ann Arbor
- NSA Number:
- NSA-17-032606
- OSTI ID:
- 4690644
- Journal Information:
- J. Polymer Sci., Pt. A, Journal Name: J. Polymer Sci., Pt. A Vol. Vol: 1
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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