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| P(MAA-co-DMA)两性电解质微凝胶的制备与性能 | |
| 引用本文： | 申迎华,李晓琴,刘慧敏,树学峰,刘妙青,张林香. P(MAA-co-DMA)两性电解质微凝胶的制备与性能[J]. 高分子材料科学与工程, 2011, 0(4): 139-142 |
| 作者姓名： | 申迎华 李晓琴 刘慧敏 树学峰 刘妙青 张林香 |
| 作者单位： | 太原理工大学化学化工学院;太原理工大学应用力学与生物医学工程研究所;太原理工大学煤科学与技术教育部和山西省重点实验室 |
| 基金项目： | 山西省自然科学基金资助项目(2010011032-2) |
| 摘 要： | 以甲基丙烯酸(MAA)和甲基丙烯酸二甲氨基乙酯(DMA)为单体,N,N’-亚甲基双丙烯酰胺(MBA)为交联剂,采用反相微乳液聚合法制备了一系列不同单体物质的量比的聚两性电解质微凝胶P(MAA-co-DMA)。通过傅里叶红外光谱(FT-IR)、电位与电导滴定、动态光散射(DLS)及紫外可见分光光度法等测试手段对其进行表征与分析。研究结果表明,P(MAA-co-DMA)为两性聚合物,其实际组成与投料比一致;在低和高pH值范围,微凝胶粒子处于溶胀状态,在等电点(IEP)附近,粒子收缩,微观结构变得紧密,IEP值与理论预测值相比有所偏移;随着pH值的变化,微凝胶分散液透光率变化不明显。 |
| 关 键 词： | 反相微乳液聚合法 微凝胶 聚两性电解质 等电点 |
Preparation and Performance of P(MAA-co-DMA) Polyampholyte Microgels |
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| Yinghua Shen,Xiaoqin Li,Huimin Liu,Xuefeng Shu,Miaoqing Liu,Linxiang Zhang. Preparation and Performance of P(MAA-co-DMA) Polyampholyte Microgels[J]. Polymer Materials Science & Engineering, 2011, 0(4): 139-142 | |
| Authors: | Yinghua Shen Xiaoqin Li Huimin Liu Xuefeng Shu Miaoqing Liu Linxiang Zhang |
| Affiliation: | 1(1.College of Che Mistry and Che Mical Engineering,Taiyuan University of Technology;2.Institute of Applied Mechanics and Bio Medical Engineering,Taiyuan University of Technology;3.Key Laboratory of Coal Science and Technology,Taiyuan University of Technology,Ministry of Education and Shanxi Province,Taiyuan 03002,China) |
| Abstract: | A series of polya mpholyte microgel particles with different mole percentages of monomers,containing both methacrylic acid(MAA) and 2-(dimethylamino) ethyl methacrylate(DMA),were prepared by inverse microemulsion polymerization.N,N’ methylenebisacrylamide(MBA) was used as crosslinker.The particles were characterized through Fourier transfor m infrared spectrophotometer(FT-IR),potentiometric and conductometric titration,dynamic light scattering(DLS) and UV vis spectrophotometry.The results confirm P(MAA-co-DMA) is the amphoteric polymer. The actual compositions of the microgel systems show good agreement with feed ratio.The microgel swells at low and high pH and possesses a compact structurenear the isoelectric point(IEP),shift occurs between the observed IEP values with theoretical IEP.Changes in microgel dispersion trans mittance is slightly at different pH. |
| Keywords: | inverse microe mulsion poly merization microgels polya mpholyte isoelectric point |
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