File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
Related Researcher

백종범

Baek, Jong-Beom
Center for Dimension-Controllable Organic Frameworks
Read More

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

Full metadata record

DC Field Value Language
dc.citation.endPage 8285 -
dc.citation.number 22 -
dc.citation.startPage 8278 -
dc.citation.title MACROMOLECULES -
dc.citation.volume 37 -
dc.contributor.author Baek, Jong-Beom -
dc.contributor.author Lyons, CB -
dc.contributor.author Tan, LS -
dc.date.accessioned 2023-12-22T10:41:35Z -
dc.date.available 2023-12-22T10:41:35Z -
dc.date.created 2014-09-16 -
dc.date.issued 2004-11 -
dc.description.abstract In-situ polymerization of 3-phenoxybenzoic acid in the presence of various amounts (1-30 wt %) of vapor-grown carbon nanofibers (VGCNF) was carried out in poly(phosphoric acid)/phosphorus pentoxide (PPA/P 2O 5; 1:4 w/w) medium. 3-Phenoxybenzoic acid polymerizes via Friedel-Crafts acylation in PPA to form poly(oxy-1,3-phenylenecarbonyl-1,4-phenylene) or mPEK. The resulting mPEK-g-VGCNF products that contained less than 10 wt % of VGCNF were soluble in N-methyl-2-pyrrolidinone and had intrinsic viscosity values ranging from 1 to 1.73 dL/g in methanesulfonic acid (MSA) at 30 ± 0.1°C. The overall evidence based on the data from elemental analysis (EA), thermogravimetric analysis (TGA), and Fourier transform infrared spectroscopy (FT-IR) as well as scanning electron and transmission electron microscopies of the resulting materials implicates that VGCNF remained more or less structurally intact under the mildly acidic, relatively high-shearing and hot polymerization conditions. It is also evident that under these reaction conditions mPEK was grafted onto the surface of VGCNF, resulting in the formation of "hairy tubes". The wide-angle X-ray diffraction result showed the growth of the 3.35 A peak characteristic of VGCNF that increased in intensity proportionately to the presence of VGCNF in the sample and correlated well with the EA and TGA results. The conductivity of the cast film (10 wt % VGCNF) is 0.25 S/cm (bottom of film) and 0.30 S/cm (top of film). -
dc.identifier.bibliographicCitation MACROMOLECULES, v.37, no.22, pp.8278 - 8285 -
dc.identifier.doi 10.1021/ma048964o -
dc.identifier.issn 0024-9297 -
dc.identifier.scopusid 2-s2.0-12844286115 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/6074 -
dc.identifier.url http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=12844286115 -
dc.identifier.wosid 000224789600018 -
dc.language 영어 -
dc.publisher AMER CHEMICAL SOC -
dc.title Grafting of vapor-grown carbon nanofibers via in-situ polycondensation of 3-phenoxybenzoic acid in poly(phosphoric acid) -
dc.type Article -
dc.description.journalRegisteredClass scopus -

qrcode

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