Dendronized polymer as building block for layer-by-layer assembly: Polyelectrolyte multilayer films for incorporation and controlled release of water-insoluble dye

被引：20

作者：

Jiao, Qing ^{[1
]}

Yi, Zhuo ^{[1
]}

Chen, Yongming ^{[1
]}

Xi, Fu ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, BNLMS, Beijing 100080, Peoples R China

来源：

POLYMER | 2008年 / 49卷 / 06期

基金：

中国国家自然科学基金;

关键词：

controlled release; dendronized polymer; layer-by-layer assembly;

D O I：

10.1016/j.polymer.2008.01.064

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 multilayer films of the carboxylic acid terminated Frechet-type dendronized polymer (denpol) and poly (diallyl-dimethylammonium chloride) (PDDA) were fabricated using the electrostatic layer-by-layer (LbL) assembly technique on planar substrates. The influence of pH and ionic strength of the polyelectrolyte dipping solutions on the fabrication of the PDDA/denpol multilayer films has been investigated in detail. AFM images showed that pH of the polyeletrolyte dipping solutions can obviously influence the surface morphology and roughness of the denpol layer in the multilayer films. We also use a preassembly method for incorporating water-insoluble molecule of pyrene into interior of denpol, and then fabricate the PDDA/pyrene-loaded denpol multilayer films. Moreover, we demonstrated that the loaded pyrenes can be released from the LbL films, which can be controlled by ionic strength of immersing solutions. Interestingly, the pyrene-released multilayer film can be used to reload pyrene when immersing the pyrene-released film into a saturated aqueous solution of pyrene. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1520 / 1526

页数：7

共 52 条

[11] Form and function in multilayer assembly: New applications at the nanoscale [J].

Hammond, PT .

ADVANCED MATERIALS, 2004, 16 (15) :1271-1293

[12] UNIMOLECULAR MICELLES AND GLOBULAR AMPHIPHILES - DENDRITIC MACROMOLECULES AS NOVEL RECYCLABLE SOLUBILIZATION AGENTS [J].

HAWKER, CJ ;

WOOLEY, KL ;

FRECHET, JMJ .

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, 1993, (12) :1287-1297

[13] DNA multilayer films on planar and colloidal supports: Sequential assembly of like-charged polyelectrolytes [J].

Johnston, APR ;

Read, ES ;

Caruso, F .

NANO LETTERS, 2005, 5 (05) :953-956

[14] ENVIRONMENTAL EFFECTS ON VIBRONIC BAND INTENSITIES IN PYRENE MONOMER FLUORESCENCE AND THEIR APPLICATION IN STUDIES OF MICELLAR SYSTEMS [J].

KALYANASUNDARAM, K ;

THOMAS, JK .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1977, 99 (07) :2039-2044

[15] Investigation of the factors influencing the formation of dendrimer/polyanion multilayer films [J].

Khopade, AJ ;

Caruso, F .

LANGMUIR, 2002, 18 (20) :7669-7676

[16] STEPWISE FORMATION OF MULTILAYERED NANOSTRUCTURAL FILMS FROM MACROMOLECULAR PRECURSORS [J].

KLEINFELD, ER ;

FERGUSON, GS .

SCIENCE, 1994, 265 (5170) :370-373

[17] Design and demonstration of hybrid multilayer structures: Layer-by-layer mixed covalent and ionic interlayer linking chemistry [J].

Kohli, P ;

Blanchard, GJ .

LANGMUIR, 2000, 16 (22) :8518-8524

[18] A NEW KIND OF IMMOBILIZED ENZYME MULTILAYER BASED ON CATIONIC AND ANIONIC INTERACTION [J].

KONG, W ;

ZHANG, X ;

GAO, ML ;

ZHOU, H ;

LI, W ;

SHEN, JC .

MACROMOLECULAR RAPID COMMUNICATIONS, 1994, 15 (05) :405-409

[19] Azo polymer multilayer films by electrostatic self-assembly and layer-by-layer post azo functionalization [J].

Lee, SH ;

Balasubramanian, S ;

Kim, DY ;

Viswanathan, NK ;

Bian, S ;

Kumar, J ;

Tripathy, SK .

MACROMOLECULES, 2000, 33 (17) :6534-6540

[20] Direct electrochemistry of myoglobin and cytochrome p450cam in alternate layer-by-layer films with DNA and other polyions [J].

Lvov, YM ;

Lu, ZQ ;

Schenkman, JB ;

Zu, XL ;

Rusling, JF .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (17) :4073-4080

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