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首页> 外文期刊>Journal of Applied Polymer Science >Preparation and properties of PEG hydrogel from PEG macromonomer with sulfonate end group
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Preparation and properties of PEG hydrogel from PEG macromonomer with sulfonate end group

机译：端基为磺酸盐的PEG大分子单体制备PEG水凝胶及其性能

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摘要

A novel PEG macromonomer with rnethacryloyl and sulfonate group at each chain end was prepared, and new PEG-based hydrogels were prepared by crosslinking polymerization of this PEG macromonomer in the presence of PEG dimethacrylate. Their swelling properties are measured and compared with those of reference hydrogel from methoxy PEG methacrylate to elucidate the effect of the sulfonate end group. The prepared sulfonated PEG hydrogels exhibited water absorbency in the range of 19 similar to 42 g water/g dry-gel depending on the composition. These hydrogels with anionic sulfonate group showed swelling behavior varying with salt type, concentration, and also with pH of aqueous solution. The morphology of the sulfonated PEG gels by SEM showed irregular porous network structure varying with the composition. (C) 2005 Wiley Periodicals, Inc.
机译：制备了在每个链末端具有甲基丙烯酰基和磺酸酯基的新型PEG大分子单体，并且通过在PEG二甲基丙烯酸酯存在下使该PEG大分子单体交联聚合来制备新的基于PEG的水凝胶。测量它们的溶胀性能，并将其与参考水凝胶的溶胀性能进行比较，以阐明甲磺酸PEG甲基丙烯酸酯的作用。取决于组成，所制备的磺化PEG水凝胶显示出在19的范围内的吸水率，类似于42g水/ g干凝胶。这些具有阴离子磺酸盐基团的水凝胶的溶胀行为随盐的类型，浓度以及水溶液的pH值而变化。扫描电镜下磺化PEG凝胶的形貌显示不规则的多孔网络结构随组成而变化。 （C）2005 Wiley期刊公司

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