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以双甲基丙烯酸乙二醇酯类为交联剂的丙烯酸β-羟乙酯类水凝胶中水的拉曼光谱学研究

ANALYSIS OF RAMAN SPECTRA OF WATER IN 2-HYDROXYETHYL ACRYLATES HYDROGELS CROSSLINKED BY POLYETHYLENE GLYCOL DIMETHACRYLATE

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【作者】 郭兴林陈广强李福绵张树霖

【Author】 GUO Xinglin, CHEN Guangqiang, LI Fumian (College of Chemistry, Peking University, Beijing\ 100871) ZHANG Shulin (Department of Physics, Peking University, Beijing\ 100871)

【机构】 北京大学化学学院!北京100871北京大学物理系!北京100871

【Abstract】 A Raman spectroscopic study on the hydrogen\|bond defect of water in 2\|hydroxyethyl (meth)acrylate hydrogels crosslinked by ethylene glycol dimethacrylate (EGDMA) and polyethylene glycol dimethacrylates were undertaken.It was found that PEGDMA 16 possessed a different behavior on the hydrogen\|bond defect from EGDMA and PEGDMA 9.That is,the extents of hydrogen\|bond defect for EGDMA and PEGDMA 9 decreased with the increase of crosslinking density,whereas for PEGDMA 16,as the crosslinking density is bigger than a certain value,the hydrogenbond defect is increased with the increase of crosslinking density.This is caused by the weaker effect of —CH 2OCH 2— in the PEGDMA 16 to the hydrogen\|bond defect of water than that of —OH in HEA and HEMA.

【基金】 国家自然科学基金资助项目!(基金号 59773018和59633020)
  • 【文献出处】 高分子学报 ,ACTA POLYMERICA SINICA , 编辑部邮箱 ,2000年05期
  • 【分类号】O632
  • 【被引频次】4
  • 【下载频次】296
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