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Akbari, S., Eslahi, N., Haghighat Kish, M. (2017). Evaluation of hydrophilic properties of acrylonitrile/acrylic acid copolymer films dendrigrafted with citric acid. Polyolefins Journal, 4(2), 213-220. doi: 10.22063/poj.2017.1436
Somaye Akbari; Niloofar Eslahi; Mohammad Haghighat Kish. "Evaluation of hydrophilic properties of acrylonitrile/acrylic acid copolymer films dendrigrafted with citric acid". Polyolefins Journal, 4, 2, 2017, 213-220. doi: 10.22063/poj.2017.1436
Akbari, S., Eslahi, N., Haghighat Kish, M. (2017). 'Evaluation of hydrophilic properties of acrylonitrile/acrylic acid copolymer films dendrigrafted with citric acid', Polyolefins Journal, 4(2), pp. 213-220. doi: 10.22063/poj.2017.1436
Akbari, S., Eslahi, N., Haghighat Kish, M. Evaluation of hydrophilic properties of acrylonitrile/acrylic acid copolymer films dendrigrafted with citric acid. Polyolefins Journal, 2017; 4(2): 213-220. doi: 10.22063/poj.2017.1436

Evaluation of hydrophilic properties of acrylonitrile/acrylic acid copolymer films dendrigrafted with citric acid

Article 5, Volume 4, Issue 2 - Issue Serial Number 8, Winter and Spring 2017, Page 213-220  XML PDF (1399 K)
Document Type: Original research
DOI: 10.22063/poj.2017.1436
Authors
Somaye Akbari 1; Niloofar Eslahi1, 2; Mohammad Haghighat Kish1
1Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran
2Department of Textile Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
Receive Date: 01 November 2016,  Revise Date: 11 January 2017,  Accept Date: 12 February 2017 
Abstract
The present study investigates the hydrophilic properties of acrylonitrile/acrylic acid P(AN/AA) copolymer films with various acrylic acid (AA) contents dendrigrafted with citric acid from zero to fourth generation numbers. It was found that the hydrophilicity of the dendrigrafted films was a complicated phenomenon. Various parameters such as intermolecular hydrogen bonding, roughness and active functional groups affected the wettability of the film samples measured via static contact angle. The results revealed that the hydrophilicity decreased with increasing the generation number owing to the steric hindrance of terminal groups. However, active functional group increased by rising generation numbers which was confirmed using zeta potential measurement. Furthermore, the percentage conversion of the reactions showed a reduction with increasing generation number and AA content which was in agreement with the reduction in wettability corresponding to the higher contact angle. On the other hand, zeta potential as well as roughness of the films increased with successive generations.
Keywords
Acrylonitrile/acrylic acid copolymer; dendrigraft; wettability; contact angle; roughness
Main Subjects
Structure and property relationship
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