Thermomechanical and Water-Responsive Shape Memory Properties of Carbon Nanotubes-Reinforced Hyperbranched Polyurethane Composites

被引：14

作者：

Rana, Sravendra ^{[1
]}

Cho, Jae Whan ^{[1
]}

Park, Jong-Shin ^{[2
]}

机构：

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

[2] Seoul Natl Univ, Dept Biosyst & Biomat Sci & Engn, Seoul 151742, South Korea

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2013年 / 127卷 / 04期

基金：

新加坡国家研究基金会;

关键词：

hyperbranched; composites; polyurethanes; shape memory; carbon nanotubes; DYNAMIC-MECHANICAL BEHAVIOR; POLYMER NANOCOMPOSITES; BLOCK-COPOLYMERS; CASTOR-OIL;

D O I：

10.1002/app.37537

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Shape memory composites of hyperbranched polyurethane (HBPU) and acid-treated multi-walled carbon nanotubes (MWNTs) were prepared using an in situ polymerization method. HBPUs with different hard segments contents were synthesized via the A(2) + B-3 approach using poly(ethylene glycol) (PEG) as a soft segment, 4,4'-methylene bis(phenylisocynate), castor oil, and 1,4-butanediol as hard segment. Compared to HBPU, the HBPU/MWNT composites showed faster shape recovery and double the shape recovery stress in the thermomechanical shape memory test, which was dependent on the MWNTs content and HBPU hard segment content. The water-responsive shape memory effect of HBPU/MWNT composites was considered to result from the combined contribution of hydrophilic PEG and well dispersed MWNTs in highly branched HBPU molecules. (C) 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 127: 2670-2677, 2013

引用

页码：2670 / 2677

页数：8

共 43 条

[11] Carbonaceous fillers for shape memory actuation of polyurethane composites by resistive heating [J].

Gunes, I. Sedat ;

Jimenez, Guillermo A. ;

Jana, Sadhan C. .

CARBON, 2009, 47 (04) :981-997

[12] ONE-STEP SYNTHESIS OF HYPERBRANCHED DENDRITIC POLYESTERS [J].

HAWKER, CJ ;

LEE, R ;

FRECHET, JMJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1991, 113 (12) :4583-4588

[13] 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

[14] Water-driven programmable polyurethane shape memory polymer: Demonstration and mechanism [J].

Huang, WM ;

Yang, B ;

An, L ;

Li, C ;

Chan, YS .

APPLIED PHYSICS LETTERS, 2005, 86 (11) :1-3

[15]

Hult A, 1999, ADV POLYM SCI, V143, P1

[16] Hyperbranched polymers: a promising new class of materials [J].

Jikei, M ;

Kakimoto, M .

PROGRESS IN POLYMER SCIENCE, 2001, 26 (08) :1233-1285

[17] Application of shape memory polyurethane in orthodontic [J].

Jung, Yong Chae ;

Cho, Jae Whan .

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE, 2010, 21 (10) :2881-2886

[18] Synthesis and Characterization of Castor-Oil-Modified Hyperbranched Polyurethanes [J].

Karak, Niranjan ;

Rana, Sravendra ;

Cho, Jae Whan .

JOURNAL OF APPLIED POLYMER SCIENCE, 2009, 112 (02) :736-743

[19] Remotely actuated polymer nanocomposites - stress-recovery of carbon-nanotube-filled thermoplastic elastomers [J].

Koerner, H ;

Price, G ;

Pearce, NA ;

Alexander, M ;

Vaia, RA .

NATURE MATERIALS, 2004, 3 (02) :115-120

[20] Structure and thermomechanical properties of polyurethane block copolymers with shape memory effect [J].

Lee, BS ;

Chun, BC ;

Chung, YC ;

Sul, KI ;

Cho, JW .

MACROMOLECULES, 2001, 34 (18) :6431-6437

← 1 2 3 4 5 →