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Frontal copolymerization of 2‐hydroxyethyl methacrylate and ethylene glycol dimethacrylate without porogen: comparison with suspension polymerization
Author(s) -
Pujari NS,
Vishwakarma AR,
Pathak TS,
Mule SA,
Ponrathnam S
Publication year - 2004
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1626
Subject(s) - suspension polymerization , ethylene glycol dimethacrylate , copolymer , materials science , polymerization , polymer chemistry , azobisisobutyronitrile , methacrylate , chemical engineering , methacrylic acid , polymer , composite material , engineering
Networked, crosslinked poly[(2‐hydroxyethyl methacrylate)‐ co ‐(ethylene glycol dimethacrylate)] (HEMA‐EGDM) was synthesized by frontal polymerization (FP) using azobisisobutyronitrile as initiator. HEMA‐EGDM copolymers of similar composition were also synthesized by suspension polymerization. The two sets of copolymers were characterized for functional groups (IR), pore volume (mercury intrusion porosimetry), surface area (nitrogen adsorption) and morphology (scanning electron microscopy). FP‐generated polymeric network structures had higher internal pore volumes and surface areas but their surface morphologies were inferior to those of copolymers synthesized by suspension polymerization. Copyright © 2004 Society of Chemical Industry