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Analytical and physical investigation of alkyd resin in the course of its preparation. I. Determination of composition of reaction mixture using volatile monocarboxylic acid for alkyd synthesis
Author(s) -
Kaštánek Alois,
Hájek Karel,
Dufka Oldřich
Publication year - 1986
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.1986.070310236
Subject(s) - alkyd , phthalic anhydride , saponification , pentaerythritol , monomer , organic chemistry , glycerol , chemistry , polymer chemistry , materials science , catalysis , polymer , coating , fire retardant
The extent of esterification between isocaprylic acid, phthalic anhydride, glycerol, and pentaerythritol was followed by analysis of reaction mixture. Acid numbers, hydroxyl numbers, and saponification numbers of alkyd samples were determined at different stages of the reaction. A way of calculation of the losses of volatile monomer reactants from liquid reaction mixture was proposed. The amounts of condensed water experimentally measured during alkyd synthesis correspond to the amounts of water losses from the batch that were calculated.