HYDROGELS FROM 2-HYDROXYETHYL METHACRYLATE AND PROPYLENE GLYCOL MONOACRYLATE
HYDROGELS FROM 2-HYDROXYETHYL METHACRYLATE AND PROPYLENE GLYCOL MONOACRYLATE
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DOI：
10.1002/app.1965.070090707
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发表时间：
1965-01-01
影响因子：
3
通讯作者：
YASUDA, H
中科院分区：
文献类型：
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作者：
REFOJO, MF;YASUDA, H
由甲基丙烯酸2-羟乙酯（HEMA）和丙二醇单丙烯酸酯（PGMA）制备亲水性三维聚合物网络（水凝胶）。通过湿交联，与干交联聚合物网络相比，获得了相对较好地保持其原始形状和体积的水凝胶。透明水凝胶中可保持的最大水量取决于单体的亲水性，例如，例如，在一个实施例中，对于HEMA凝胶约40%，对于PGMA凝胶约50%，以及对于HEMA-PGMA共聚物凝胶40-50%，这取决于单体组成。当透明凝胶（均质水凝胶）中的水含量超过该最大值时，它们变得不透明和/或海绵状（非均质水凝胶）。考察了交联剂用量和单体溶液初始稀释度对水凝胶溶胀行为的影响。研究了这些水凝胶的溶胀和水渗透的温度依赖性。
Hydrophilic three‐dimensional polymer networks (hydrogels) were prepared from 2‐hydroxyethyl methacrylate (HEMA) and propylene glycol monacrylate (PGMA). By wet crosslinking, hydrogels which maintain their original shape and volume relatively well, compared with the dry‐cross‐linked polymer networks, were obtained. The maximum amount of water which can be maintained in transparent hydrogels depends on the hydrophilicity of the monomers, e. g., about 40% for HEMA gels, about 50% for PGMA gels, and 40–50% for HEMA–PGMA copolymer gels depending on the monomer composition. When the water content exceeds this maximum in transparent gels (homogeneous hydrogels), they become opaque and/or spongy (heterogeneous hydrogels). Effects of the amount of crosslinking agent and the initial dilution of the monomer solution upon the swelling behavior of hydrogels were investigated. The temperature dependence of the swelling of these hydrogels and the water permeation through them were also studied.