Synthesis and the Porous Structure Studies of the Macroporous High Crosslinking styrene-divinyl-A Copolymers

Abstract

Abstract: Styrene-2,2-bismethacryloyloxyphenyl propane(divinyl-A) copolymers have been prepared by suspension copolymerization in the presence of toluene and using isoamyl alcohol as the diluents in the present paper.2,2-Bismethacryloyloxyphenyl propane (divinvl-A) as a novel crosslinking agent is first used in the synthesis of styrene type copolymer.Aseries of the macroporous and high crosslinking copolymers have been synthesized under different reaction conditions. The effects of the content of divinyl-A, type and content of these diluents,the amounts of initiator and PVA on the development of porosity of the copolymers are discussed. The characterization of the copolymers was carried out through the determination of apparenl density, specific area, pore volume and pore size.The appearance of the copolymer beads was examined by using scanning electron microscopy. It was found that the porosity of styrene-divinyl-Acopoymers increased with the increase of the amount of divinyl-A. And the specific area, pore volume and pore size increased with the inerease of amount of unsuitable solvent (isoamyl alcohol) content in diluent mixture.

Key words: Styrene, Bisvinyl-A,Suspension polymerization, Pore structure

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LIU Zhi-Qiang, LIU Feng-Qi, YANG Feng, WU Tong-Hao, YANG Hong-Mao, JIANG Yu-Zi, TANG Xin-Yi. Synthesis and the Porous Structure Studies of the Macroporous High Crosslinking styrene-divinyl-A Copolymers[J]. Chem. J. Chinese Universities, 1995, 16(12): 1968.

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Synthesis and the Porous Structure Studies of the Macroporous High Crosslinking styrene-divinyl-A Copolymers

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