间苯二甲酸交联壳纳米颗粒的包封与功能化。

Ramjee Balasubramanian, Young-Gil Kwon, Alexander Wei
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引用次数: 24

摘要

两种末端侧链为烯烃的间苯二甲酸乙酯衍生的四硫醇(四芳基硫醇空腔体3和四苄基硫醇空腔体4)可以有效地从水溶液中提取胶体金纳米颗粒,并稳定其在有机溶剂中的分散。用Grubbs烯烃分解催化剂处理这些纳米颗粒分散体,得到交联间苯二甲酸甲酯壳,在高温下对烷硫醇诱导的脱附具有很强的抵抗力。四苄基硫醇空腔和4交联壳中的纳米颗粒特别坚固,并且可以以最小的磨损多次沉淀和再分散。这些壳也可以承受氧化条件,并适用于合成修饰,包括环氧化和二羟基化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Encapsulation and Functionalization of Nanoparticles in Crosslinked Resorcinarene Shells.

Two resorcinarene-derived tetrathiols with terminal alkene sidechains (tetraarylthiol cavitand 3 and tetrabenzylthiol cavitand 4) were determined to be efficient at extracting colloidal gold nanoparticles from aqueous solutions and stabilizing their dispersion in organic solvents. Treatment of these nanoparticle dispersions with the Grubbs olefin metathesis catalyst resulted in crosslinked resorcinarene shells that were highly resistant to alkanethiol-induced desorption at high temperatures. Nanoparticles in crosslinked shells of tetrabenzylthiol cavitand 4 were particularly robust, and could be precipitated and redispersed many times with minimal attrition. These shells could also withstand oxidative conditions and were amenable to synthetic modifications involving epoxidation and dihydroxylation.

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来源期刊
Journal of Materials Chemistry
Journal of Materials Chemistry 工程技术-材料科学:综合
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