Enhanced dispersion of carbon nanotubes in hyperbranched polyurethane and properties of nanocomposites

被引：72

作者：

Rana, Sravendra ^{[1
]}

Karak, Niranjan ^{[1
]}

Cho, Jae Whan ^{[1
]}

Kim, Young Ho ^{[2
]}

机构：

[1] Konkuk Univ, Dept Text Engn, Seoul 143701, South Korea

[2] Soongsil Univ, Dept Organ Mat & Fiber Engn, Seoul 156743, South Korea

来源：

NANOTECHNOLOGY | 2008年 / 19卷 / 49期

关键词：

D O I：

10.1088/0957-4484/19/49/495707

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Hyperbranched polyurethane (HBPU) nanocomposites with multi-walled carbon nanotubes (MWNTs) were prepared by in situ polymerization on the basis of poly(epsilon-caprolactone) diol as the soft segment, 4,4'-methylene bis(phenylisocyanate) as the hard segment, and castor oil as the multifunctional group for the hyperbranched structure. A dominant improvement in the dispersion of MWNTs in the HBPU matrix was found, and good solubility of HBPU-MWNT nanocomposites in organic solvents was shown. Due to the well-dispersed MWNTs, the nanocomposites resulted in achieving excellent shape memory properties as well as enhanced mechanical properties compared to pure HBPU.

引用

页数：8

共 43 条

[1]

Andrews R, 2002, MACROMOL MATER ENG, V287, P395, DOI 10.1002/1439-2054(20020601)287:6<395::AID-MAME395>3.0.CO

[2]

2-S

[3] Carbon nanotubes - the route toward applications [J].

Baughman, RH ;

Zakhidov, AA ;

de Heer, WA .

SCIENCE, 2002, 297 (5582) :787-792

[4] Electroactive shape-memory polyurethane composites incorporating carbon nanotubes [J].

Cho, JW ;

Kim, JW ;

Jung, YC ;

Goo, NS .

MACROMOLECULAR RAPID COMMUNICATIONS, 2005, 26 (05) :412-416

[5] The effect of different siloxane chain-extenders on the thermal degradation and stability of segmented polyurethanes [J].

Chuang, FS ;

Tsen, WC ;

Shu, YC .

POLYMER DEGRADATION AND STABILITY, 2004, 84 (01) :69-77

[6] THERMODYNAMICS OF FUSION OF POLY-BETA-PROPIOLACTONE AND POLY-EPSILON-CAPROLACTONE - COMPARATIVE ANALYSIS OF MELTING OF ALIPHATIC POLYLACTONE AND POLYESTER CHAINS [J].

CRESCENZI, V ;

MANZINI, G ;

CALZOLARI, G ;

BORRI, C .

EUROPEAN POLYMER JOURNAL, 1972, 8 (03) :449-+

[7] Stacking nature of graphene layers in carbon nanotubes and nanofibres [J].

Endo, M ;

Takeuchi, K ;

Hiraoka, T ;

Furuta, T ;

Kasai, T ;

Sun, X ;

Kiang, CH ;

Dresselhaus, MS .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1997, 58 (11) :1707-1712

[8]

Gordon R. F., 1993, Materials Technology, V8, P254

[9] Multi-arm star poly(L-lactide) with hyperbranched polyglycerol core [J].

Gottschalk, Carsten ;

Wolf, Florian ;

Frey, Holger .

MACROMOLECULAR CHEMISTRY AND PHYSICS, 2007, 208 (15) :1657-1665

[10] Formation of a supramolecular hyperbranched polymer from self-organization of an AB2 monomer containing a crown ether and two paraquat moieties [J].

Huang, FH ;

Gibson, HW .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (45) :14738-14739

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