Size-controllable gold nanoparticles stabilized by PDEAEMA-based double hydrophilic graft copolymer

被引：39

作者：

Feng, Chun ^{[3
,4
]}

Gu, Lina ^{[3
,4
]}

Yang, Dong ^{[1
,2
]}

Hu, Jianhua ^{[1
,2
]}

Lu, Guolin ^{[3
,4
]}

Huang, Xiaoyu ^{[3
,4
]}

机构：

[1] Fudan Univ, Key Lab Mol Engn Polymers, Minist Educ, Adv Mat Lab, Shanghai 200433, Peoples R China

[2] Fudan Univ, Dept Macromol Sci, Shanghai 200433, Peoples R China

[3] Acad Sinica, Shanghai Inst Organ Chem, Lab Polymer Mat, Shanghai 200032, Peoples R China

[4] Acad Sinica, Key Lab Organofluorine Chem, Shanghai 200032, Peoples R China

来源：

POLYMER | 2009年 / 50卷 / 16期

基金：

中国国家自然科学基金;

关键词：

Nanoparticles; Graft copolymers; Size-controllable; BLOCK-COPOLYMER; STEP SYNTHESIS; NANOCOMPOSITES; TEMPERATURE; PERSPECTIVE; REDUCTION; POLYMERS;

D O I：

10.1016/j.polymer.2009.06.048

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly(N-isopropylacrylamide)-b-[poly(ethyl acrylate)-g-poly(2-(diethylamino)ethyl methacrylate)] (PNIPAM-b-(PEA-g-PDEAEMA)) double hydrophilic graft copolymers were employed to prepare stable colloidal gold nanoparticles in situ with controllable size in aqueous media without any external reducing agent. PDEAEMA side chains served as reduction agent and stabilizer and PNIPAM segment acted as a hydrated layer to enhance the stability of gold nanoparticles. These gold nanoparticles showed a remarkable colloidal stability without any observable flocculation or aggregation for at least 2 months and they were characterized by UV-vis, XRD, TEM and AFM in detail. The size of gold nanoparticles can be tuned by adjusting the length of PDEAEMA side chains and the molar ratio of [DEAEMA]/[AuCl(4) over bar]. Both the increasing of the length of PDEAEMA side chains and the decreasing of [DEAEMA]/[AuCl(4) over bar] molar ratio resulted in the fall of size. (C)2009 Elsevier Ltd. All rights reserved.

引用

页码：3990 / 3996

页数：7

共 26 条

[1] Stimuli responsive polymers for biomedical applications [J].

Alarcón, CDH ;

Pennadam, S ;

Alexander, C .

CHEMICAL SOCIETY REVIEWS, 2005, 34 (03) :276-285

[2] Influence of surface and bulk structures of acrylic PSA films onto their tack properties [J].

Aymonier, A ;

Papon, E ;

Castelein, G ;

Brogly, A ;

Tordjeman, P .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2003, 268 (02) :341-347

[3] X-ray photoelectron spectroscopy sulfur 2p study of organic thiol and disulfide binding interactions with gold surfaces [J].

Castner, DG ;

Hinds, K ;

Grainger, DW .

LANGMUIR, 1996, 12 (21) :5083-5086

[4] Static secondary ion mass spectrometry studies of self-assembled monolayers: Influence of adsorbate chain length and terminal functional group on rates of photooxidation of alkanethiols on gold [J].

Cooper, E ;

Leggett, GJ .

LANGMUIR, 1998, 14 (17) :4795-4801

[5]

Esumi K, 2000, LANGMUIR, V16, P2604, DOI 10.1021/1a991291w

[6] Synthesis and characterization of PNIPAM-b-(PEA-g-PDEA) double hydrophilic graft copolymer [J].

Feng, Chun ;

Shen, Zhong ;

Gu, Lina ;

Zhang, Sen ;

Li, Litao ;

Lu, Guolin ;

Huang, Xayu .

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2008, 46 (16) :5638-5651

[7] Preparation and characterization of dendrimer-gold colloid nanocomposites [J].

Garcia, ME ;

Baker, LA ;

Crooks, RM .

ANALYTICAL CHEMISTRY, 1999, 71 (01) :256-258

[8] Stimuli-reponsive polymers and their bioconjugates [J].

Gil, ES ;

Hudson, SM .

PROGRESS IN POLYMER SCIENCE, 2004, 29 (12) :1173-1222

[9] Synthesis of PPEGMEA-g-PMAA densely grafted double hydrophilic copolymer and its use as a template for the preparation of size-controlled superparamagnetic Fe3O4/polymer nano-composites [J].

Gu, Lina ;

Shen, Zhong ;

Feng, Chun ;

Li, Yaogong ;

Lu, Guolin ;

Huang, Xiaoyu ;

Wang, Guowei ;

Huang, Junlian .

JOURNAL OF MATERIALS CHEMISTRY, 2008, 18 (36) :4332-4340

[10] Preparation of gold-dendrimer nanocomposites by laser irradiation and their catalytic reduction of 4-nitrophenol [J].

Hayakawa, K ;

Yoshimura, T ;

Esumi, K .

LANGMUIR, 2003, 19 (13) :5517-5521

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