Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/89561
Title: Nanoporous ultra-low-dielectric-constant fluoropolymer films via selective UV decomposition of poly(pentafluorostyrene)-block-poly(methyl methacrylate) copolymers prepared using atom transfer radical polymerization
Authors: Fu, G.-D.
Yuan, Z. 
Kang, E.-T. 
Neoh, K.-G. 
Lai, D.M.
Huan, A.C.H.
Issue Date: Feb-2005
Citation: Fu, G.-D., Yuan, Z., Kang, E.-T., Neoh, K.-G., Lai, D.M., Huan, A.C.H. (2005-02). Nanoporous ultra-low-dielectric-constant fluoropolymer films via selective UV decomposition of poly(pentafluorostyrene)-block-poly(methyl methacrylate) copolymers prepared using atom transfer radical polymerization. Advanced Functional Materials 15 (2) : 315-322. ScholarBank@NUS Repository.
Abstract: Block copolymers of poly(pentafluorostyrene) (PFS) and poly(methyl methacrylate) (PMMA) (PFS-b-PMMA) have been synthesized using atom transfer radical polymerization (ATRP). Then, nanoporous fluoropolymer films have been prepared via selective UV decomposition of the PMMA blocks in the PFS-b-PMMA copolymer films. The chemical composition and structure of the PFS homopolymers and copolymers have been characterized using nuclear magnetic resonance (NMR) spectroscopy, thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), time-of-flight secondary-ion mass spectrometry (ToF-SIMS), and molecular-weight measurements. The cross-sectional and surface morphologies of the PFS-b-PMMA copolymer films before and after selective UV decomposition of the PMMA blocks have been studied using field-emission scanning electron microscopy (FESEM). The nanoporous fluoropolymer films with pore sizes in the range 30-50 nm and porosity in the range 15-40 % have been obtained from the PFS-b-PMMA copolymers of different PMMA content. Dielectric constants approaching 1.8 have been achieved in the nanoporous fluoropolymer films which contain almost completely decomposed PMMA blocks. © 2005 WILEY-VCH Verlag GmbH & Co. KgaA, Weinheim.
Source Title: Advanced Functional Materials
URI: http://scholarbank.nus.edu.sg/handle/10635/89561
ISSN: 1616301X
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

63
checked on Feb 27, 2018

WEB OF SCIENCETM
Citations

65
checked on Apr 16, 2018

Page view(s)

42
checked on Nov 2, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.