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Sur la dégradation thermique du chlorure de polyvinyle. I. Méthodes expérimentales d'etude cinétique
Author(s) -
Guyot Alain,
Benevise JeanPaul
Publication year - 1962
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.1962.070061911
Subject(s) - hydrochloric acid , titration , polyvinyl chloride , chemistry , isothermal process , analytical chemistry (journal) , gradation , chromatography , mineralogy , thermodynamics , physics , inorganic chemistry , organic chemistry , art , visual arts
An apparatus for polyvinyl chloride thermal degradation under isothermal conditions and in a controlled atmosphere is described with precision. Continuous measurement of loss of weight of the sample under degradation and, at the same time, continuous titration of hydrochloric acid evolved, can be carried out. The apparatus consists essentially of a magnetically equilibrated Ugine‐Eyraud balance, in which runs a purified gas stream that picks up volatile products in an argentimetric titration cell, coupled to a titrimeter and recorder. Total precision of simultaneous measurements is 1%. An example of the experimental results is given.