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Fabrication of robust honeycomb polymer films: A facile photochemical cross-linking process

Highly ordered honeycomb films are prepared by breath-figure method using an amphiphilic diblock copolymer of polystyrene- block-polyacrylic acid (PS- b-PAA). By simply cross-linking PS matrix via deep ultraviolet (UV) irradiation, both the solvent and thermal stability of the porous films was signi... Full description

Journal Title: Journal of Colloid And Interface Science 2009, Vol.331(2), pp.446-452
Main Author: Li, Lei
Other Authors: Chen, Caikang , Zhang, Aijuan , Liu, Xinyu , Cui, Kun , Huang, Jin , Ma, Zhi , Han, Zhaohui
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0021-9797 ; E-ISSN: 1095-7103 ; DOI: 10.1016/j.jcis.2008.11.053
Link: http://dx.doi.org/10.1016/j.jcis.2008.11.053
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recordid: elsevier_sdoi_10_1016_j_jcis_2008_11_053
title: Fabrication of robust honeycomb polymer films: A facile photochemical cross-linking process
format: Article
creator:
  • Li, Lei
  • Chen, Caikang
  • Zhang, Aijuan
  • Liu, Xinyu
  • Cui, Kun
  • Huang, Jin
  • Ma, Zhi
  • Han, Zhaohui
subjects:
  • Porous Film
  • Block Copolymer
  • Porous Film
  • Block Copolymer
  • Engineering
  • Chemistry
ispartof: Journal of Colloid And Interface Science, 2009, Vol.331(2), pp.446-452
description: Highly ordered honeycomb films are prepared by breath-figure method using an amphiphilic diblock copolymer of polystyrene- block-polyacrylic acid (PS- b-PAA). By simply cross-linking PS matrix via deep ultraviolet (UV) irradiation, both the solvent and thermal stability of the porous films was significantly improved while retaining the three-dimensional (3D) structures. The film surface wettability was changed from hydrophobicity to hydrophilicity by the formed polar groups during the photochemical process. After 6 h UV cross-linking, the honeycomb structures could be preserved up to 320 °C, an increase of more than 200 K as compared to the non-cross-linked films. Cross-section S image of PS- b-PAA film after UV exposure and thermal treatment up to 320 °C.
language: eng
source:
identifier: ISSN: 0021-9797 ; E-ISSN: 1095-7103 ; DOI: 10.1016/j.jcis.2008.11.053
fulltext: fulltext
issn:
  • 0021-9797
  • 00219797
  • 1095-7103
  • 10957103
url: Link


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titleFabrication of robust honeycomb polymer films: A facile photochemical cross-linking process
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descriptionHighly ordered honeycomb films are prepared by breath-figure method using an amphiphilic diblock copolymer of polystyrene- block-polyacrylic acid (PS- b-PAA). By simply cross-linking PS matrix via deep ultraviolet (UV) irradiation, both the solvent and thermal stability of the porous films was significantly improved while retaining the three-dimensional (3D) structures. The film surface wettability was changed from hydrophobicity to hydrophilicity by the formed polar groups during the photochemical process. After 6 h UV cross-linking, the honeycomb structures could be preserved up to 320 °C, an increase of more than 200 K as compared to the non-cross-linked films. Cross-section S image of PS- b-PAA film after UV exposure and thermal treatment up to 320 °C.
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Highly ordered honeycomb films are prepared by breath-figure method using an amphiphilic diblock copolymer of polystyrene- block-polyacrylic acid (PS- b-PAA). By simply cross-linking PS matrix via deep ultraviolet (UV) irradiation, both the solvent and thermal stability of the porous films was significantly improved while retaining the three-dimensional (3D) structures. The film surface wettability was changed from hydrophobicity to hydrophilicity by the formed polar groups during the photochemical process. After 6 h UV cross-linking, the honeycomb structures could be preserved up to 320 °C, an increase of more than 200 K as compared to the non-cross-linked films.

Cross-section SEM image of PS- b-PAA film after UV exposure and thermal treatment up to 320 °C.

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Highly ordered honeycomb films are prepared by breath-figure method using an amphiphilic diblock copolymer of polystyrene- block-polyacrylic acid (PS- b-PAA). By simply cross-linking PS matrix via deep ultraviolet (UV) irradiation, both the solvent and thermal stability of the porous films was significantly improved while retaining the three-dimensional (3D) structures. The film surface wettability was changed from hydrophobicity to hydrophilicity by the formed polar groups during the photochemical process. After 6 h UV cross-linking, the honeycomb structures could be preserved up to 320 °C, an increase of more than 200 K as compared to the non-cross-linked films.

Cross-section SEM image of PS- b-PAA film after UV exposure and thermal treatment up to 320 °C.

pubElsevier Inc
doi10.1016/j.jcis.2008.11.053
lad01Journal of Colloid And Interface Science
date2009-03-15