中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 一种悬浮纳米零价铁聚合物的制备与表征 湖北农业科学 2015,54 (20) 5099-5102
Position: Home > Articles > Characterization and Preparation for a Suspension of Nano Zero Valent Iron Triblock Polymers Hubei Agricultural Sciences 2015,54 (20) 5099-5102

一种悬浮纳米零价铁聚合物的制备与表征

作  者：
张威;韩占涛;刘守信
单  位：
中国地质科学院水文地质环境地质研究所/中国地质调查局地下水污染机理与修复重点实验室;应用表面与胶体化学教育部重点实验室/陕西师范大学化学化工学院
关键词：
纳米零价铁;原子转移自由基聚合法;嵌段聚合物;悬浮剂
摘  要：
研究制备了聚甲基丙烯酸-聚甲基丙烯酸甲酯-聚苯乙烯磺酸三嵌段(PMAA-PMMA-PSS)聚合物,该聚合物用于悬浮纳米零价铁(NZVI)。首先利用原子转移自由基聚合法(ATRP)合成聚甲基丙烯酸叔丁酯-聚甲基丙烯酸甲酯-聚苯乙烯(Pt BMA-PMMA-PSt),然后用三氟乙酸将聚甲基丙烯酸叔丁酯水解为聚甲基丙烯酸,用乙酰基硫酸将聚苯乙烯磺化为聚苯乙烯磺酸。该制备方法在聚合物合成过程中将前人的三步反应改进为一步反应,减少了操作步骤,减少了原材料消耗,提高了反应稳定性和目标物的产率。根据凝胶渗透色谱分析,PMAA-PMMA-PSS相对分子质量可达10万左右,对纳米零价铁的悬浮效果稳定时间可达60 d以上。
译  名：
Characterization and Preparation for a Suspension of Nano Zero Valent Iron Triblock Polymers
作  者：
ZHANG Wei;HAN Zhan-tao;LIU Shou-xin;Institute of Hydrogeology and Environmental Geology ,Chinese Academy of Geological Sciences/Laboratory of Groundwater Remediation;Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education , School of Chemistry and Chemical Engineering, Shaanxi Normal University;
关键词：
nano zero valent iron(NZVI);;atom transfer radical polymerization;;block copolymer;;suspending agent
摘  要：
The block copolymer of poly(methacrylic acid)-block-poly(methyl methacrylate)-block-poly(styrenesulfonic acid)(PMAA-PMMA-PSS)has been synthesized, the polymer was used in the suspension nanoscale zero valent iron.First,the block copolymer of poly(tert-butyl methacrylate)-block-poly(methyl methacrylate)-block-poly(styrene)(Pt BMA-PMMA-PSt) has been synthesized by an atom transfer radical polymerization(ATRP)method, then the amphiphilic block copolymer of poly(methacrylic acid)(PMAA) was obtained from poly(tert-butyl methacrylate) in TFA solution, poly(styrenesulfonic acid) was obtained from poly(styrene) in vitriol-acetyl solution. In the synthetic processof the synthetic polymer, the previous three reaction steps was improved to one step, reduced the number of reaction steps and the consumption of raw materials, improves the stability of the reaction and the yield of the target. According to gel chromatogram(GPD) analysis, the molecular weight of PMAA-PMMA-PSS up to about 100 000, suspension of nano zero valent iron(NZVI) in PMAA-PMMA-PSS settling up to 60 days or more.

相似文章

导出引用
计量
文章访问数: 9
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46