Segmental Mobility Studies of Poly(N-isopropyl acrylamide) Interactions with Gold Nanoparticles and Its Use as a Thermally Driven Trapping System.

Segmental Mobility Studies of Poly(N-isopropyl acrylamide) Interactions with Gold Nanoparticles and Its Use as a Thermally Driven Trapping System.
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聚(N-异丙基丙烯酰胺)与金纳米粒子相互作用的片段迁移率研究及其作为热驱动捕获系统的用途。

DOI:
10.1002/marc.201800090
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发表时间:
2018
影响因子:
4.6
通讯作者:
Swift T
Swift T
中科院分区:
化学3区
文献类型:
--
作者:
Swift T

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聚(N-异丙基丙烯酰胺)(PNIPAM)在低浓度金纳米粒子存在下的热解溶结合纳米粒子导致悬浮聚集体。通过在聚合进料中共价掺入~lt;1%的<1%萘,该共聚物能够被用作模型来研究PNIPAM主链的链段迁移率对金纳米颗粒的响应,表明在超低的纳米颗粒负载量下,可溶聚合物发生了物理构象重排,表明与纳米颗粒的低亲和力相互作用。热解溶法能够从溶液中提取99.9%的纳米颗粒,从而证明了聚(N-异丙基丙烯酰胺)可以作为一种优秀的洗涤系统来去除溶液中的金属纳米材料污染物。
Thermal desolvation of poly(N‐isopropylacrylamide) (PNIPAM) in the presence of a low concentration of gold nanoparticles incorporates the nanoparticles resulting in suspended aggregates. By covalently incorporating <1% acenaphthylene into the polymerization feed this copolymer is enabled to be used as a model to study the segmental mobility of the PNIPAM backbone in response to gold nanoparticles both below and above the desolvation temperature, showing that there is a physical conformational rearrangement of the soluble polymer at ultralow nanoparticle loadings, indicating low affinity interactions with the nanoparticles. Thermal desolvation is capable of extracting >99.9% of the nanoparticles from their solutions and hence demonstrates that poly(N‐isopropylacrylamide) can act as an excellent scrubbing system to remove metallic nanomaterial pollutants from solution.
用于装载姜黄素并递送至癌细胞的聚(2-恶唑啉)嵌段共聚物纳米粒子
DOI: 10.1016/j.eurpolymj.2017.02.043
发表时间: 2017
影响因子: 6
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