第 37 卷第 3 期 |  | Vol. 37 No. 3 | 2007 年 6 月 | Jun 2007 |
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所屬欄目:功能材料
溫度及pH敏感水凝膠的制備與溶脹性能研究 |
吳生輝,李 誼,楊 芬,王玉玲,宋宏銳
(沈陽(yáng)藥科大學(xué) 制藥工程學(xué)院,遼寧 沈陽(yáng) 110016) |
摘 要:用順丁烯二酸酐(MAH)對β-環(huán)糊精(β-CD)進(jìn)行化學(xué)改性,合成出了一種新型功能性單體MAH-β-CD。以N,N'-亞甲基雙丙烯酰胺(BIS)為交聯(lián)劑,過(guò)硫酸銨(APS)為引發(fā)劑,通過(guò)氧化還原自由基引發(fā)單體MAH-β-CD、N-異丙基丙烯酰胺(NIPA)及陰離子單體丙烯酸鈉(SA)共聚,合成出一種新型水凝膠。用核磁共振、紅外光譜對水凝膠進(jìn)行了表征。溶脹研究結果表明,該水凝膠具有較好的pH及溫度敏感性。 |
關(guān)鍵詞:β-環(huán)糊精;N-異丙基丙烯酰胺;交聯(lián)劑;水凝膠;pH敏感性;溫度敏感性 |
中圖分類(lèi)號:O63 文獻標識碼:A 文章編號:1009-9212(2007)03- 0054 -04 |
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Synthesis and Properties of pH-and Temperature-sensitive Hydrogel |
WU Sheng-hui,LI Yi,YANG Fen,WANG Yu-ling,SONG Hong-rui
(School of Pharmaceutical Engineering,Shenyang Pharmaceutical University,Shenyang 110016,China) |
Abstract:A novel functional monomer (MAH-β-CD) containing vinyl and carboxyl groups was synthesized by reaction of β-cyclodextrin(β-CD) with maleic anhydride(MAH). A new hydrogel was prepared through copolymerization of MAH-β-CD with N-isopropylacrylamide(NIPA)and sodium acrylate(SA) using ammonium persulfate(APS)as the initiator and N,N'-methylene-bisacrylamide(Bis)as the crosslinker in aqueous solution. The MAH-β-CD monomer and the gels obtained were characterized using IR spectra and 13C NMR,Results from a study on equilibrium swelling ratios (ESR) indicated that the hydrogels had good sensitivity to pH values and temperature. |
Key words:β-Cyclodextrin;N-Isopropylacrylamide;crosslinker;hydrogel;pH-sensitivity;temperature-sensitivity |
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作者簡(jiǎn)介:吳生輝(1980-),男,湖北蘄春人,碩士。研究方向:藥用輔料。(E-mail jacksoncoco@yahoo.com.cn)
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聯(lián) 系 人:宋宏銳(1956-),男,遼寧恒仁人,教授,博士生導師,主要從事藥物化學(xué)與有機化學(xué)的研究。(E-mail hongruisong@163.com)
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收稿日期:2007-05-10
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