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Porous polymer carbons. I. Preparation and properties of porous poly(vinylidene chloride) precursor copolymers
Author(s) -
Howard G. J.,
Knutton S.
Publication year - 1975
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.1975.070190306
Subject(s) - porosimetry , suspension polymerization , materials science , porosity , polymer , chemical engineering , copolymer , polymerization , monomer , scanning electron microscope , polymer chemistry , suspension (topology) , diluent , ethylene glycol dimethacrylate , adsorption , polyvinyl chloride , chloride , porous medium , composite material , chemistry , organic chemistry , mathematics , homotopy , pure mathematics , engineering , metallurgy , methacrylic acid
A series of porous solids has been prepared by the suspension polymerization of mixtures of vinylidene chloride and ethylene glycol dimethacrylate with a nonsolvating diluent. Alteration of the monomer composition and concentration leads to marked variations in the total porosity and pore sizes of the solid polymers. Scanning electron microscopy shows that the suspension‐polymerized beads consist of a microglobular interior encapsulated in a more coherent outer skin. This surface material affects the apparent density of the polymers and their behavior in mercury intrusion porosimetry and low‐temperature nitrogen adsorption.