Temperature sensitive hybrid microgels loaded with ZnO nanoparticles

被引：50

作者：

Agrawal, Mukesh ^{[1
]}

Pich, Andrij ^{[2
]}

Gupta, Smrati ^{[1
]}

Zafeiropoulos, Nikolaos E. ^{[1
]}

Rubio-Retama, Jorge ^{[1
]}

Simon, Frank ^{[1
]}

Stamm, Manfred ^{[1
]}

机构：

[1] Leibniz Inst Polymerforsch Dresden eV, D-01069 Dresden, Germany

[2] Tech Univ Dresden, Inst Makromol Chem & Textilchem, D-01062 Dresden, Germany

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2008年 / 18卷 / 22期

关键词：

D O I：

10.1039/b802102c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report on a generic approach for the preparation of ZnO loaded temperature sensitive hybrid microgels with structural hierarchy. The synthetic process involves controlled hydrolysis of Zn(CH(3)COO)(2)center dot 2H(2)O salt in the presence of poly(N-vinylcaprolactam- co-acetoacetoxyethylmethacrylate) (PVCL-AAEM) microgel templates in 2-propanol. Transmission electron microscopy (TEM) and electron mapping image (EMI) analysis have been employed to prove the presence of ZnO nanoparticles inside the polymeric templates. Dynamic light scattering (DLS) measurements reveal that hybrid microgels display a temperature sensitivity similar to the pure template particles, even at a high loading of ZnO nanoparticles. Changes in size, morphology and physical properties of hybrid microgels as a function of the loading amount of ZnO nanoparticles have been discussed. We demonstrate that these nanostructured materials can effectively be used as transparent UV-shielding materials. In addition, these submicrometre-size hybrid microgels could be applied in the fields of optoelectronic devices, UV-detectors, and photocatalysts.

引用

页码：2581 / 2586

页数：6

共 60 条

[11] NANOSCALE MAGNETIC PARTICLES - NEW METHODS TO SURFACE PROTECTED METALLIC AND IMMISCIBLE BIMETALLIC CLUSTERS PARTICLES [J].

EASOM, KA ;

KLABUNDE, KJ ;

SORENSEN, CM ;

HADJIPANAYIS, GC .

POLYHEDRON, 1994, 13 (08) :1197-1223

[12] Alkali earth metal binding properties of ionic microgels [J].

Eichenbaum, GM ;

Kiser, PF ;

Shah, D ;

Meuer, WP ;

Needham, D ;

Simon, SA .

MACROMOLECULES, 2000, 33 (11) :4087-4093

[13]

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

[14] The copolymerization of N-vinyl-2-pyrrolidone with 2-hydroxyethyl methacrylate [J].

Faragalla, MM ;

Hill, DJT ;

Whittaker, AK .

POLYMER BULLETIN, 2002, 47 (05) :421-427

[15]

Feng MH, 1996, POLYM ADVAN TECHNOL, V7, P613

[16] Stimulus-responsive emulsifiers based on nanocomposite microgel particles [J].

Fujii, S ;

Read, ES ;

Binks, BP ;

Armes, SP .

ADVANCED MATERIALS, 2005, 17 (08) :1014-+

[17] Preparation and stabilization of gold nanoparticles formed by in situ reduction of aqueous chloroaurate ions within surface-modified mesoporous silica [J].

Ghosh, A ;

Patra, CR ;

Mukherjee, P ;

Sastry, M ;

Kumar, R .

MICROPOROUS AND MESOPOROUS MATERIALS, 2003, 58 (03) :201-211

[18] Hybrid microgels photoresponsive in the near-infrared spectral range [J].

Gorelikov, I ;

Field, LM ;

Kumacheva, E .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (49) :15938-15939

[19] Covalent immobilization of quantum dots on macroscopic surfaces using poly(acrylic acid) brushes [J].

Gupta, Smrati ;

Uhlmann, Petra ;

Agrawal, Mukesh ;

Lesnyak, Vladimir ;

Gaponik, Nikolai ;

Simon, Frank ;

Stamm, Manfred ;

Eychmueller, Alexander .

JOURNAL OF MATERIALS CHEMISTRY, 2008, 18 (02) :214-220

[20] Poly(N-vinylcaprolactam-co-glycidyI methacrylate) aqueous microgels labeled with fluorescent LaF3:Eu nanoparticles [J].

Haentzschel, Nadine ;

Zhang, Fenbao ;

Eckert, Franziska ;

Pich, Andrij ;

Winnik, Mitchell A. .

LANGMUIR, 2007, 23 (21) :10793-10800

← 1 2 3 4 5 6 →