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On the preparation of porous crosslinked poly(ethylene dimethacrylate esters): Polymers and copolymers
Author(s) -
Poinescu Ig. C.,
Vlad Cristina,
Ioanid Ghiocel
Publication year - 1996
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/(sici)1097-4628(19960207)59:6<991::aid-app13>3.0.co;2-q
Subject(s) - ethylene glycol dimethacrylate , porosity , polymer , copolymer , thermal stability , polymer chemistry , chemical engineering , polymerization , materials science , monomer , adsorption , chemistry , organic chemistry , composite material , engineering , methacrylic acid
Macroreticular polymers and copolymers based on poly(ethylene glycol dimethacrylate esters) possessing a permanent porosity (white opaque beads, 40–60% porosity, 354 m 2 /g, the apparent density less than 1.060 g/mL, etc.) were prepared. The influence of the porogen thermodynamic quality and its weight fraction used in the polymerization mixture on the bead structure was also studied. The porous structure of the matrices was investigated and proved by SEM analyses, the N 2 adsorption (BET) method, etc. The thermal degradation mechanism of the macroreticular beads based on dimethacrylate esters shows that the thermal stability of samples depends on the monomer structure, i.e., the chain length between the two vinyl groups. © 1996 John Wiley & Sons, Inc.