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Quelques remarques concernant le mécanisme de polymérisation en bloc du chlorure de vinyle
Author(s) -
Krozer Sz.,
Członkowska Z.
Publication year - 1964
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1964.070080317
Subject(s) - branching (polymer chemistry) , materials science , titration , molar mass distribution , monomer , polymerization , polymer chemistry , analytical chemistry (journal) , viscosity , chemistry , chromatography , polymer , composite material
Samples of PVC, obtained by bulk polymerization were tested. Molecular weight distribution by nephelometric titration, number of branching by viscosity measurement, and density of the powders and films using a density gradient column were assessed. Microphotographs of the powders were taken. It was found that the average number of branching in 1000 monomer units is approximately proportional to the contact surface of the liquid and solid phase.