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Titolo:
Micro-thermal analysis and evolved gas analysis
Autore:
Price, DM; Reading, M; Lever, TJ; Hammiche, A; Pollock, HM;
Indirizzi:
Loughborough Univ Technol, Inst Polymer Technol & Mat Engn, Loughborough LE11 3TU, Leics, England Loughborough Univ Technol Loughborough Leics England LE11 3TU cs, England TA Instruments Ltd, Bilton Ctr, Leatherhead KT22 7UQ, Surrey, England TA Instruments Ltd Leatherhead Surrey England KT22 7UQ Q, Surrey, England Univ Lancaster, Sch Phys, Lancaster LA1 4YB, England Univ Lancaster Lancaster England LA1 4YB hys, Lancaster LA1 4YB, England
Titolo Testata:
THERMOCHIMICA ACTA
, volume: 367, anno: 2001,
pagine: 195 - 202
SICI:
0040-6031(20010308)367:<195:MAAEGA>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
THERMOGRAVIMETRY; SPECTROSCOPY;
Keywords:
scanning probe thermal microscopy; localized thermal analysis; localized pyrolysis; evolved gas analysis;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
9
Recensione:
Indirizzi per estratti:
Indirizzo: Price, DM Loughborough Univ Technol, Inst Polymer Technol & Mat Engn, Loughborough LE11 3TU, Leics, England Loughborough Univ Technol Loughborough Leics England LE11 3TU d
Citazione:
D.M. Price et al., "Micro-thermal analysis and evolved gas analysis", THERMOC ACT, 367, 2001, pp. 195-202

Abstract

Micro-thermal analysis employs an active heated tip in a scanning probe microscope. This allows topographic and thermal imaging of surfaces to be carried out and permits localised thermal analysis of selected areas of material. In order to provide a means for spatially resolved chemical characterization, a method of trapping the gases that are evolved when the thermal probe is used to pyrolyze the surface has been developed. The trapped gases can then be thermally desorbed and passed into a GC-MS system for separation and identification. With this system it is possible to ablate a small (< 10<mu>m x 10 mum) area of a sample (or a domain, feature or contaminant) andelucidate its composition. This paper presents initial results for a homogeneous polymer (poly(methyl methacrylate))- and a heterogeneous polymer blend (polystyrene/poly(alpha -methyl styrene)). (C) 2001 Elsevier Science B.V. All rights reserved.

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Documento generato il 12/07/20 alle ore 03:06:26