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首页> 外文期刊>Journal of Materials Research >Mixed micelles from synergistic self-assembly of hybrid copolymers with charge difference electrostatic interaction induced re-organization of micelles from hybrid copolymers
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Mixed micelles from synergistic self-assembly of hybrid copolymers with charge difference electrostatic interaction induced re-organization of micelles from hybrid copolymers

机译:杂化共聚物协同自组装的混合胶束,电荷差静电相互作用引起杂化共聚物胶束的重组

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摘要

Novel mixed micelle was successfully fabricated by the synergistic self-assembly of poly(methacrylate isobutyl polyhedral oligomeric silsesquioxane (POSS)-co-N-isopropylacrylamide-co-oligo(ethylene glycol)methyl ether methacrylate-co-acrylic acid) (P(methacrylate isobutyl (MAPOSS)-co-NIPAM-co-OEGMA-co-AA)) and poly(methacrylate isobutyl POSS-co-N-isopropylacrylamide-co-oligo(ethylene glycol) methyl ether methacrylate-co-2-vinylpyridine) (P(MAPOSS-co-NIPAM-co-OEGMA-co-2VP)). Dynamic light scattering (DLS) and transmission electron microscopy characterizations demonstrate that the formation of mixed micelles is driven by electrostatic interaction. The formation of the mixed micelles was further implied by a simple fluorescence resonance energy transfer based technique. The mixed micelle possesses the biggest size at pH = 7.0, which is attributed to the strongest electrostatic interaction between the two kinds of micelles. The zeta potential under different pH was detected to further investigate the surface charges corroborating the discussions. DLS and UV-vis indicate that the lower critical solution temperature (LCST) is pH dependent. The mixed micelles reach the highest LCST at pH 7.0. The LCST of the mixed micelle can be tuned by adjusting the volume ratio of the two kinds of micelles as well. Moreover, the thermo-responsive behavior of the mixed micelle is absolutely reversible.
机译:通过聚(甲基丙烯酸异丁酯多面体低聚倍半硅氧烷(POSS)-共-N-异丙基丙烯酰胺-共-低聚(乙二醇)甲基醚甲基丙烯酸-共丙烯酸)(P(甲基丙烯酸异丁基(MAPOSS)-co-NIPAM-co-OEGMA-co-AA))和聚(甲基丙烯酸异丁酯POSS-co-N-异丙基丙烯酰胺-co-低聚(乙二醇)甲基丙烯酸甲酯-co-2-乙烯基吡啶)(P (MAPOSS-co-NIPAM-co-OEGMA-co-2VP))。动态光散射(DLS)和透射电子显微镜表征表明,混合胶束的形成是由静电相互作用驱动的。简单的基于荧光共振能量转移的技术进一步暗示了混合胶束的形成。混合胶束在pH = 7.0时具有最大尺寸,这归因于两种胶束之间最强的静电相互作用。检测了在不同pH下的ζ电位,以进一步研究表面电荷,证实了上述讨论。 DLS和紫外线可见指示较低的临界溶液温度(LCST)与pH有关。混合胶束在pH 7.0时达到最高LCST。也可以通过调节两种胶束的体积比来调节混合胶束的LCST。此外,混合胶束的热响应行为是绝对可逆的。

著录项

  • 来源
    《Journal of Materials Research》 |2016年第14期|2046-2057|共12页
  • 作者单位

    Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, People's Republic of China, Department of Materials Science and Engineering, Xiamen University, Xiamen 361005, People's Republic of China;

    Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen;

    Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen;

    Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen;

    Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen;

    Department of Materials and Optoelectronic Science, Center for Nanoscience and Nanotechnology, National Sun Yat-Sen University, Kaohsiung 804, Taiwan;

    Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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