Abstract
Copolymer networks based on acrolein (ACR), styrene (STY) and divinylbenzene (DVB) at varied proportions were prepared by suspension polymerization employing a mixture of toluene (Tol) and n-heptane (Hep) as porogenic agent. The resins were characterized by textural analysis (BET and BJH methods) and bulk density. The optical microscopy (OM) and scanning electron microscopy (SEM) were employed to evaluate their morphologic characteristics. The acrolein incorporation into the copolymer network was verified by the FTIR and 13C CP/MAS NMR methods. The porosity of cross-linked copolymers was dependent on the acrolein amount employed in their synthesis. The carbonyl groups of ACR/STY/DVB copolymers were modified by hydroxylamine reaction under alkaline conditions.
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