Synthesis and application of a metal ion coordinating ionic liquid monomer: Towards size and dispersity control of nanoparticles formed within a structured polyelectrolyte

被引：5

作者：

Dreier, Timothy A. ^{[1
]}

Ringstrand, Bryan S. ^{[1
]}

Seifert, Sonke ^{[2
]}

Firestone, Millicent A. ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Mat Phys & Applicat Div, POB 1663, Los Alamos, NM 87545 USA

[2] Argonne Natl Lab, Xray Sci Div, 9700 S Cass Ave, Lemont, IL 60439 USA

来源：

EUROPEAN POLYMER JOURNAL | 2018年 / 107卷

关键词：

Poly(ionic liquid)s; Metal coordinating; Nanostructured; Plasmonic nanoparticles; Acrylamide IL; GOLD NANOPARTICLES; MULTILAYER NANOREACTORS; AMINO-ACID; ACRYLAMIDE; CHEMISTRY; COMPLEXES; DESIGN; ORGANIZATION; GENERATION; DIFFUSION;

D O I：

10.1016/j.eurpolymj.2018.08.017

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The design, synthesis, and characterization of an amphiphilic ionic liquid (IL) monomer possessing a transition metal coordinating acrylamide moiety is described. Incorporation of the acrylamide moiety is achieved by converting L-histidine into an imidazolium, followed by allcylation to introduce a decyl chain, and acrylation of the alpha-amino group. The acrylamide containing IL monomer and a co-monomer, poly(ethylene glycol) diacrylate (PEGDA M-n 575), self-assembles into a weakly ordered 2D hexagonal lyotropic mesophase in water (34 +/- 2 (w/w)%). Upon photo-irradiation of the mesophase a nanostructured polyelectrolyte retaining the 2D hexagonal structure is produced. Doping the mesophase with Au3+ ions prior to photo-irradiation produces plasmonic Au NP copolymer composites only at a threshold mole ratio of IL monomer to gold ions (i.e., onset at 1740:1 mole ratio). At higher monomer to Au3+ mole ratios plasmonic NPs are not formed. Evaluation of the in-situ synthesized plasmonic Au NPs by SAXS and optical spectroscopy indicate they are smaller, more uniform spherical particles that resist aggregation upon swelling and de-swelling in ethanol when compared to previously reported composites employing an IL monomer that lacks a metal ion coordination site (e.g., 3-decyl-1-vinylimidazolium IL).

引用

页码：275 / 286

页数：12

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