Issue 33, 2012
From the journal:

Journal of Materials Chemistry

A graphene/poly(vinyl alcohol) hybrid membrane self-assembled at the liquid/air interface: enhanced mechanical performance and promising saturable absorber†

Si-Da Wu,a   Wei Lv,ab   Jia Xu,c   Dan Han,a   Xu Chen,a   Pu Wang*c  and  Quan-Hong Yang*ab  

* Corresponding authors

a School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
E-mail: qhyangcn@tju.edu.cn

b Key Laboratory of Thermal Management Engineering and Materials, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
E-mail: yang.quanhong@sz.tsinghua.edu.cn

c Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
E-mail: wangpuemail@bjut.edu.cn

Abstract

A liquid–air self-assembly strategy is proposed to uniformly hybridize hydrophobic graphene with amphiphilic polymer, like PVA (poly(vinyl alcohol)), in a thin membrane, where the polymer imparts aqueous-dispersion and membrane-forming abilities to the encapsulated graphene. The microstructure, transmittance and wettability of the GNS/PVA hybrid membranes are finely tunable by changing the GNS fraction. Due to strong interaction between GNSs and PVA, the GNS-incorporated hybrid membrane formed at liquid–air interface shows improved thermal stability and highly enhanced mechanical performance as compared to GNS-free PVA membrane. Also, well-distributed GNS in the transparent polymer carrier make the hybrid membrane an ideal saturable absorber in ultrafast laser systems.

Graphical abstract: A graphene/poly(vinyl alcohol) hybrid membrane self-assembled at the liquid/air interface: enhanced mechanical performance and promising saturable absorber

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Article information

DOI
https://doi.org/10.1039/C2JM32326E
Article type
Paper
Submitted
14 Apr 2012
Accepted
02 Jul 2012
First published
03 Jul 2012

J. Mater. Chem., 2012,22, 17204-17209

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A graphene/poly(vinyl alcohol) hybrid membrane self-assembled at the liquid/air interface: enhanced mechanical performance and promising saturable absorber

S. Wu, W. Lv, J. Xu, D. Han, X. Chen, P. Wang and Q. Yang, J. Mater. Chem., 2012, 22, 17204 DOI: 10.1039/C2JM32326E

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