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Membranes 2014, 4(2), 200-209; doi:10.3390/membranes4020200
Article

Effect of Cross-Linking on the Mechanical and Thermal Properties of Poly(amidoamine) Dendrimer/Poly(vinyl alcohol) Hybrid Membranes for CO2 Separation

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Research Institute of Innovative Technology for the Earth (RITE), 9-2 Kizugawadai, Kizugawa-shi, Kyoto 619-0292, Japan
* Author to whom correspondence should be addressed.
Received: 12 January 2014 / Revised: 18 February 2014 / Accepted: 26 March 2014 / Published: 8 April 2014
(This article belongs to the Special Issue Selected Papers from AMS8 Conference (July 2013, Xi’an, China))
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Abstract

Poly(amidoamine) (PAMAM) dendrimers were incorporated into cross-linked poly(vinyl alcohol) (PVA) matrix to improve carbon dioxide (CO2) separation performance at elevated pressures. In our previous studies, PAMAM/PVA hybrid membranes showed high CO2 separation properties from CO2/H2 mixed gases. In this study, three types of organic Ti metal compounds were selected as PVA cross-linkers that were used to prepare PAMAM/cross-linked PVA hybrid membranes. Characterization of the PAMAM/cross-linked PVA hybrid membranes was conducted using nanoindentation and thermogravimetric analyses. The effects of the cross-linker and CO2 partial pressure in the feed gas on CO2 separation performance were discussed. H2O and CO2 sorption of the PAMAM/PVA hybrid membranes were investigated to explain the obtained CO2 separation efficiencies.
Keywords: poly(amidoamine) dendrimer; poly(vinyl alcohol); cross-linker; CO2 separation; polymeric membrane poly(amidoamine) dendrimer; poly(vinyl alcohol); cross-linker; CO2 separation; polymeric membrane
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Duan, S.; Kai, T.; Saito, T.; Yamazaki, K.; Ikeda, K. Effect of Cross-Linking on the Mechanical and Thermal Properties of Poly(amidoamine) Dendrimer/Poly(vinyl alcohol) Hybrid Membranes for CO2 Separation. Membranes 2014, 4, 200-209.

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