Graphene/cyclodextrin-based nanocomposite hydrogel with enhanced strength and thermo-responsive ability

Zhu, Pang1; Deng, Yonghong2; Wang, Chaoyang1

2017-10-15

10.1016/j.carbpol.2017.06.081

CARBOHYDRATE POLYMERS   影响因子和分区

0144-8617

1879-1344

Dual crosslinked system has been proved to be an efficient method to obtain tough and high strength hydrogels. Herein, we synthesized a novel graphene oxide/p(acrylamide-co-poly(ethylene glycol) methyl ether methacrylate)/alpha-cyclodextrin (GO/P(AM-co-PEGMA)/CD) physical dual crosslinked hydrogel via copolymerization of AM and PEGMA in the alpha-CD/GO solution. The polymer main chains adsorb onto the GO surface resulting in the first crosslinked system and multiple hydrogen bonds between alpha-CDs that thread on the PEGMA side chains establish the second crosslinked system. The GO/P(AM-co-PEGMA)/CD hydrogel exhibits favorable tensile properties with fracture strain of 1800% and high fracture stress of 660 kPa; in addition, the hydrogel can bear large compressive stress (2.7 MPa) at strain of 85% without rupture. Furthermore, physical dual crosslinked system endows the GO/P(AM-co-PEGMA)/CD hydrogel with thermoplastic ability and thermo-responsive shape memory behavior. This facial one-pot method will contribute to design and application of high performance hydrogel. (C) 2017 Elsevier Ltd. All rights reserved.

Hydrogel Dual crosslinked system Graphene oxide alpha-Cyclodextrin

SCI ; EI

英语

通讯

Natural Science Foundation of Guangdong Province[2016A030311031]

Chemistry ; Polymer Science

Chemistry, Applied ; Chemistry, Organic ; Polymer Science

WOS:000407696800087

ELSEVIER SCI LTD

20172903951479

Acrylic monomers ; Chains ; Fracture ; Graphene ; Graphene oxide ; Hydrogen bonds ; Polyethylene glycols

Mechanical Drives:602.1 ; Nanotechnology:761 ; Physical Chemistry:801.4 ; Chemical Products Generally:804 ; Organic Compounds:804.1 ; Organic Polymers:815.1.1 ; Materials Science:951

CHEMISTRY

Web of Science

1.South China Univ Technol, Res Inst Mat Sci, Guangzhou 510640, Guangdong, Peoples R China
2.South Univ Sci & Technol China, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China

Zhu, Pang,Deng, Yonghong,Wang, Chaoyang. Graphene/cyclodextrin-based nanocomposite hydrogel with enhanced strength and thermo-responsive ability[J]. CARBOHYDRATE POLYMERS,2017,174:804-811.

Zhu, Pang,Deng, Yonghong,&Wang, Chaoyang.(2017).Graphene/cyclodextrin-based nanocomposite hydrogel with enhanced strength and thermo-responsive ability.CARBOHYDRATE POLYMERS,174,804-811.

Zhu, Pang,et al."Graphene/cyclodextrin-based nanocomposite hydrogel with enhanced strength and thermo-responsive ability".CARBOHYDRATE POLYMERS 174(2017):804-811.