| 三元N-乙烯基吡咯烷酮共聚物高亲水性接触镜水凝胶的制备 |
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| 引用本文： | 郭建维,崔亦华,崔英德,易国斌,黎新明.三元N-乙烯基吡咯烷酮共聚物高亲水性接触镜水凝胶的制备[J].精细石油化工,2004,66(3):16-19. |
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| 作者姓名： | 郭建维 崔亦华 崔英德 易国斌 黎新明 |
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| 作者单位： | 1. 广东工业大学轻工化工学院,广州,510090
2. 仲恺农业技术学院,广州,510225 |
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| 基金项目： | 国家自然科学基金资助项目(29976007)
广东省自然科学基金资助项目(990129)。 |
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| 摘 要： | 以三甘醇为单体稀释剂,合成了N-乙烯基吡咯烷酮(NVP)-α-甲基丙烯酸β-羟乙酯(HEMA)-甲基丙烯酸乙酯(EMA)三元共聚水凝胶,确定了较优工艺条件为:w(EMA)=6％,m(单体稀释剂):m(单体总量)=0.3:1,引发剂(偶氮二异丁腈)加入量为单体总量的0.1％(质量分数),交联剂(Bis)的加入量为0.1％(质量分数),在90℃反应20 h。分析结果表明:所合成的水凝胶具有良好的光学透明度和机械强度,其平衡含水量大于84％,拉伸强度为1.42 MPa。比NVP-HEMA二元共聚物的机械强度(0.51 MPa)约提高了2倍。
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| 关 键 词： | 乙烯基吡咯烷酮 α-甲基丙烯酸-β-羟乙酯 甲基丙烯酸乙酯共聚物 水凝胶 接触镜 |
| 修稿时间： | 2004年3月30日 |
STUDY ON SYNTHESIS OF NVP TERNARY COPOLYMER HYDROGEL WITH HIGH WATER CONTENT FOR CONTACT LENS |
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| Guo Jianwei,Cui Yihua,Cui Yingde,Yi Guobin and Li Xinming.STUDY ON SYNTHESIS OF NVP TERNARY COPOLYMER HYDROGEL WITH HIGH WATER CONTENT FOR CONTACT LENS[J].Speciality Petrochemicals,2004,66(3):16-19. |
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| Authors: | Guo Jianwei Cui Yihua Cui Yingde Yi Guobin and Li Xinming |
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| Abstract: | N-Vinylpyrrolidone ( NVP)-β-hydroxyethyl α-methacrylate (HEMA)-ethyl methacrylate (EMA) copolymer hydrogel was synthesized by radical copolymerization with triethylene glycol (TEG) as diluent. The optimum reaction conditions were found as follows: w(EMA) =6%, m(TEG) :m(tolal monomers)= 0. 3 : 1, initiator(AIBN) content 0. 1% (m/m), crosslinking agent (Bis) content 0. 1%(m/m), reaction temperature 90℃, reaction time 20 h. The analytic results showed that the equilibrium water content of NVP-HEMA-EMA hydrogel was >84%, while its tensile strength is 1. 42 MPa, which is about double that of NVP-HEMA hydrogel. |
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| Keywords: | N-vinylpyrrolidone β-hydroxyethyl α-methacrylate ethyl methacrylate copolymer hy drogel contact lens |
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