引用本文:
卢玲, 石可喻, 袁直, 何炳林. 大孔交联聚甲基丙烯酸羟乙酯树脂的制备及其结构性能[J]. 应用化学,
2002, 19(9): 817-821.
Citation: LU Ling, SHI Ke-Yu, YUAN Zhi, HE Bing-Lin. Synthesis, Structure and Properties of Macroporous Crosslinked Poly(2-hydroxyethyl methacrylate) Resins[J]. Chinese Journal of Applied Chemistry, 2002, 19(9): 817-821.
Citation: LU Ling, SHI Ke-Yu, YUAN Zhi, HE Bing-Lin. Synthesis, Structure and Properties of Macroporous Crosslinked Poly(2-hydroxyethyl methacrylate) Resins[J]. Chinese Journal of Applied Chemistry, 2002, 19(9): 817-821.
大孔交联聚甲基丙烯酸羟乙酯树脂的制备及其结构性能
摘要:
采用甲基丙烯酸羟乙酯(HEMA)为单体,双甲基丙烯酸乙二醇酯(EGDMA)为交联剂,以乙酸乙酯或乙酸乙酯与十二醇的混合物为致孔剂,通过水相悬浮聚合制备了一系列大孔交联聚甲基丙烯酸羟乙酯(PHEMA)树脂,并对其孔结构、性能进行了研究,讨论了交联剂用量和致孔剂种类、用量、组成等对PHEMA树脂的孔分布、比表面积、孔容等的影响。结果表明,以乙酸乙酯为致孔剂时得到的孔分布较宽,而采用混合致孔剂时,孔分布较窄,可得到1000 nm左右的大孔;随致孔剂总用量和十二醇含量的增加,孔容增大而比表面减小;PHEMA树脂在溶度参数为14.5~10.0之间的溶剂中溶胀性能良好。
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关键词:
- 甲基丙烯酸羟乙酯
- / 双甲基丙烯酸乙二醇酯
- / 大孔树脂
- / 孔结构
English
Synthesis, Structure and Properties of Macroporous Crosslinked Poly(2-hydroxyethyl methacrylate) Resins
Abstract:
Macroporous crosslingked poly(2-hydroxyethyl methacrylate)(PHEMA) beads were prepared via a suspension polymerization technique by reacting 2-hydroxyethyl methacrylate(HEMA) with ethyleneglycol dimethylacrylate(EGDMA) as crosslinking agent as well as ethyl acetate or mixture of ethyl acetate and dodecanol as porogenic agent. The effects of amount of crosslinking agent, kind, amount and composition of porogenic agent on the pore distribution, specific surface area and pore volume of PHEMA beads were investigated. It was found that the pore distribution of resin with ethyl acetate as porogenic agent was broader than that with mixed agents. The pore volume was found increased with increase in total amount of mixed porogenic agent and the amount of dodecanol, while specific surface area decreased. PHEMA resins have good swelling ability in common solvents with solubility parameters from 14.5 to 10.0.
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