Journal of South China University of Technology(Natural Science) >

2011 , Vol. 39 >Issue 6: 65 - 70

DOI: https://doi.org/10.3969/j.issn.1000-565X.2011.06.012

Materials Science & Technology

Preparation and Characterization of Halloysite Nanotubes Grafted with Hyper-Branched PAMAM

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  • 1. School of Materials Science and Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China;2. Sika Guangzhou Ltd.,Guangzhou 510530,Guangdong,China; 3. Faculty of Chemical Engineering and Light Industry,Guangdong University of Technology,Guangzhou 510090,Guangdong,China
张俊珩(1982-) ，男，博士生，主要从事高分子材料的合成与改性研究．

Received date: 2011-01-11

  Revised date: 2011-02-23

  Online published: 2011-05-06

Supported by

国家自然科学基金资助项目( 51003031) ; 广州开发区科技发展基金资助项目( 2008Q-P120)

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Abstract

A series of modified halloysite nanotubes ( m-HNTs) with different generations of hyper-branched polyamidoamine ( PAMAM) were prepared via a divergent synthesis process by repeating the Michael addition of methyl acrylate ( MA) to superficial amino groups and the amidation of the resulting esters with ethylenediamine ( EDA) . The products were then characterized by means of FT-IR,XPS,XRD,TGA and TEM. The results show that ( 1)
hyper-branched PAMAM polymers are successfully grafted on the surface of HNTs,but the actual grafting rate is much less than the theoretical one due to the existing steric hindrance; ( 2) the grafting rate reaches 27. 21% after a 3. 0-generation grafting; and ( 3) the grafted hyper-branched PAMAM has no effect on the crystalline structure of HNTs.

Key words： halloysite nanotube; hyper-branched polyamidoamine; modification; grafting

Cite this article

Zhang Jun-heng Qiu Qing-hua Wei Yeat Yek Wang Fei-di Jia Zhi-xin Guo Bao-chun Jia De-min . Preparation and Characterization of Halloysite Nanotubes Grafted with Hyper-Branched PAMAM[J]. Journal of South China University of Technology(Natural Science), 2011 , 39(6) : 65 -70 . DOI: 10.3969/j.issn.1000-565X.2011.06.012

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