ISSN:
0449-296X
Keywords:
Physics
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The distribution of chlorine atoms in the chain of solution-chlorinated PVC (CPVC) composed of —CH2—CHCl— (1), —CHCl—CHCl— (2), and —CCl2—CHCl— (3) monomeric units is described by first-order Markoffian statistics based on the assumption that the chlorination mechanism is independent of tacticity. In this case, all the statistical parameters can be obtained from experimentally determined concentrations of CH2, CHCl and CCl2 units. Populations of the sequences (11) and (111) calculated from the statistical parameters agree with experimental values determined from infrared and 220 MHz NMR spectra. From infrared spectra, suspension-chlorinated CPVC contains blocks of intact PVC.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pol.1971.150091001
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