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相关概念视频

Colloids03:22

Colloids

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Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
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稳定油-油接口与混合的聚合物纳米粒子准备的稳定油-油接口.

Xi Zhao1,2, Jiani Peng1, Liangliang Shi1

  • 1Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering, School of Materials Science and Engineering, Changzhou University, Changzhou, 213164, Jiangsu Province, China. gydx.1027@163.com.

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概括

这项研究准备了混合聚合物纳米粒子 (MSPNs),可以有效地稳定非水性皮克林乳液. 这些新型MSPNs在石油-石油接口稳定性方面表现出高于前体纳米粒子的卓越性能.

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科学领域:

  • 聚合物化学 聚合物化学
  • 材料科学 材料科学 材料科学
  • 合体和表面科学科学

背景情况:

  • 聚合物纳米粒子是先进材料的多功能构建模块.
  • 皮克林乳液提供了与表面活性剂稳定常规乳液的替代品.
  • 稳定非水性石油-石油接口带来了独特的挑战.

研究的目的:

  • 合成和表征混合外聚合物纳米粒子 (MSPNs).
  • 研究MSPNs作为非水性油-油乳液的皮克林乳化剂的有效性.
  • 阐明这些乳液的形成机制.

主要方法:

  • 可逆添加碎片链转移 (RAFT) 聚合诱导自组装 (PISA) 制造PMMA-P4VP双块共聚物纳米粒子.
  • 在纳米粒子表面上植入C18链以形成MSPN.
  • 使用MSPN稳定[Bmim][PF6]-在-托卢和托卢-在-[Bmim][PF6]皮克林乳液.

主要成果:

  • 成功合成了具有球形,形和囊泡形态的PMMA-P4VP纳米粒子.
  • 使用P4VP核心和混合C18/PMMA外准备C18/PMMA-P4VPMSPN.
  • MSPN有效地稳定了两种不同类型的非水性皮克林乳液,而前体纳米颗粒没有.
  • MSPNs的初始位置决定了乳液类型 ([Bmim][PF6]-在-烯或烯-在-[Bmim][PF6]).

结论:

  • 与他们的双块共聚合物前体相比,MSPN在稳定非水性石油-石油接口方面表现出更强大的能力.
  • MSPN的量身定制的外结构对于它们作为皮克林乳化剂的有效性至关重要.
  • 这项工作为设计具有可调节性质的先进皮克林乳液提供了一条途径.