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首页> 外文期刊>Journal of Applied Polymer Science >Bioerodible hydrogels based on 2-hydroxyethyl methacrylate: Synthesis and characterization
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Bioerodible hydrogels based on 2-hydroxyethyl methacrylate: Synthesis and characterization

机译：基于甲基丙烯酸2-羟乙酯的生物蚀性水凝胶：合成与表征

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摘要

Biocompatible polymers with specific shape and tailored hydrogel properties were obtained by polymerization of mixtures of 2-hydroxyethyl methacrylate (HEMA) with 1-8 wt %, ethylene glycol dimethacrylate (EGDMA) or tetra(ethylene glycol) diacrylate (TEGDA) as crosslinking agents, by using a redox initiator. Introduction of charged positive and negative groups was easily achieved by direct polymerization of appropriate monomer mixtures and by chemical transformation of preformed hydrogels. Investigation of the swelling behavior of the prepared hydrogels evidenced an appreciable dependence on both solvent type and polymer chemical structure. Additionally, the solvation process resulted in being controlled by solvent diffusion, according to a Fickian II mechanism. The presence of several types of water with different melting behavior was observed in fully swollen hydrogels. (C) 2002 Wiley Periodicals, Inc. [References: 32]
机译：通过将甲基丙烯酸2-羟乙酯（HEMA）与1-8 wt％的乙二醇二甲基丙烯酸酯（EGDMA）或四丙烯酸二乙二醇酯（TEGDA）的混合物进行聚合，可获得具有特定形状和特定水凝胶性质的生物相容性聚合物，通过使用氧化还原引发剂。通过适当单体混合物的直接聚合和预先形成的水凝胶的化学转化，很容易实现带正电和负电基团的引入。对制备的水凝胶的溶胀行为的研究表明，对溶剂类型和聚合物化学结构都有明显的依赖性。另外，根据Fickian II机理，溶剂化过程通过溶剂扩散来控制。在完全溶胀的水凝胶中观察到几种类型的水具有不同的熔融行为。 （C）2002 Wiley Periodicals，Inc. [参考：32]

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