| 具有二氧化碳响应性的纳米球形聚电解质刷的制备及其乳化性能 |
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| 引用本文： | 沈哲琦,张锐,王磊,姚远,郭旭虹,朱学栋.具有二氧化碳响应性的纳米球形聚电解质刷的制备及其乳化性能[J].医学教育探索,2017,30(2):175-181. |
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| 作者姓名： | 沈哲琦 张锐 王磊 姚远 郭旭虹 朱学栋 |
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| 作者单位： | 华东理工大学化工学院, 化学工程联合国家重点实验室, 上海 200237,华东理工大学化工学院, 化学工程联合国家重点实验室, 上海 200237,华东理工大学化工学院, 化学工程联合国家重点实验室, 上海 200237,华东理工大学材料科学与工程学院, 上海 200237,华东理工大学化工学院, 化学工程联合国家重点实验室, 上海 200237,华东理工大学化工学院, 化学工程联合国家重点实验室, 上海 200237 |
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| 基金项目： | 国家自然科学基金（21374029，21004021，51573088，21446003）；上海市教委科研创新重点项目（14ZZ061）；教育部博士点基金（20130074110018） |
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| 摘 要： | 以聚苯乙烯（PS）纳米球为核，利用紫外光引发聚甲基丙烯酸N，N-二甲基氨基乙酯（PDMAEMA）接枝到PS纳米球上，得到对CO2有刺激响应的聚甲基丙烯酸N，N-二甲基氨基乙酯刷（PS-PDMAEMA）。动态光散射（DLS）、电导率结果表明PS-PDMAMEA具有CO2刺激响应性。该微粒可以作为Pickering乳液的乳化剂，通过导入CO2或N2作为开关，进而破坏或稳定Pickering乳液。用数码照片、偏光显微镜等方法表征了乳液的稳定情况。结果表明：PS-PDMAEMA具有很好的CO2刺激响应性，利用PS-PDMAEMA作为乳化剂稳定Pickering乳液，仅仅依靠气体开关（CO2或N2）就可改变乳液的稳定性。
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| 关 键 词： | 二氧化碳响应 球形聚电解质刷 Pickering乳液 |
| 收稿时间： | 2017/3/7 0:00:00 |
Preparation and Emulsifying Performance of CO2-Responsive Spherical Polyelectrolyte Brush |
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| SHEN Zhe-qi,ZHANG Rui,WANG Lei,YAO Yuan,GUO Xu-hong and ZHU Xue-dong.Preparation and Emulsifying Performance of CO2-Responsive Spherical Polyelectrolyte Brush[J].Researches in Medical Education,2017,30(2):175-181. |
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| Authors: | SHEN Zhe-qi ZHANG Rui WANG Lei YAO Yuan GUO Xu-hong and ZHU Xue-dong |
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| Institution: | State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China,State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China,State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China,School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China,State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China and State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China |
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| Abstract: | A novel CO2-responsive cationic spherical polyelectrolyte brush (SPB) was synthesized by photoemulsion polymerization, which was composed of a solid polystyrene(PS) core and poly (2-(dimethylamino)ethyl methacrylate) (PDMAEMA) shell densely grafted onto the core surface. The most important property of PS-PDMAEMA is the performance of CO2 response to Pickering emulsion which could employe CO2/N2 as a trigger. Dynamic light scattering (DLS), conductivity measurement, digital photography and polarizing microscope were used to characterize the emulsifying performance of PS-PDMAEMA microspheres. The results confirmed that PS-PDMAEMA was a CO2-responsive cationic spherical polyelectrolyte brush and could regulate the properties of Pickering emulsion with the help of CO2/N2. It could broaden the usage of CO2 as a green stimulation. |
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| Keywords: | CO2-responsive spherical polyelectrolyte brush Pickering emulsion |
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