Author
N. Grassie
Bio: N. Grassie is an academic researcher from University of Glasgow. The author has contributed to research in topics: Copolymer & Polyacrylonitrile. The author has an hindex of 17, co-authored 33 publications receiving 1436 citations.
Papers
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TL;DR: In this article, the evolution of volatile materials from pure poly(dimethylsiloxane) heated under temperature programmed conditions (10° min−1 under vacuum) is detectable at 343° and reaches a maximum at 443°.
347 citations
TL;DR: The thermal degradation of polyacrylonitrile has been studied using the techniques of thermogravimetry, differential thermal analysis and thermal volatilization analysis as discussed by the authors.
175 citations
TL;DR: In this article, it was shown that copolymers with amideoxime structures have better thermogravimetric behavior than homopolymers since the chain scission and volatilization which occur during intense exotherms are greatly reduced.
127 citations
TL;DR: In this article, the influence of sample preparation on the DTA and TG behavior of polyacrylonitrile has been studied, and various properties of the exotherm are discussed in terms of structural abnormalities and impurity effects.
120 citations
TL;DR: In this paper, low temperature isothermal heating of polyacrylonitrile in inert atmospheres is shown to produce changes similar to those occurring during the exothermic initial stage of programmed pyrolysis.
98 citations
Cited by
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TL;DR: The thermal stability and flame retardancy of polyurethanes is reviewed in this article, where a detailed description of TGA, TGA-MS and TGAFTIR methods for studying the decomposition mechanism and kinetics is also provided.
1,329 citations
TL;DR: In this article, the PAN fiber is first stretched and simultaneously oxidized in a temperature range of 200-300°C and then carbonized at about 1000°C in inert atmosphere which is usually nitrogen.
1,166 citations
TL;DR: This Review gives an overview of precursor systems, their processing, and the final precursor-dependent structure of carbon fibers (CFs) including new developments in precursor systems for low-cost CFs.
Abstract: This Review gives an overview of precursor systems, their processing, and the final precursor-dependent structure of carbon fibers (CFs) including new developments in precursor systems for low-cost CFs. The following CF precursor systems are discussed: poly(acrylonitrile)-based copolymers, pitch, cellulose, lignin, poly(ethylene), and new synthetic polymeric precursors for high-end CFs. In addition, structure-property relationships and the different models for describing both the structure and morphology of CFs will be presented.
657 citations
TL;DR: In this paper, a combination of traditional kinetic formal treatments and computer simulation has been made to analyze polydimethylsiloxane (PDMS) thermal degradation, and it was shown that PDMS thermally decomposes to cyclic oligomers through Si-O bond scission in a chain-folded cyclic conformation energetically favored by overlapping of empty silicon d-orbitals with orbitals of oxygen and carbon atoms.
635 citations
TL;DR: In this paper, the products of the thermal degradation of polydimethylsiloxane (PDMS) are determined by the heating conditions, since two competing mechanisms are involved: molecular splitting of oligomers from loop conformations of the PDMS chain and assistance on the part of empty silicon d-orbitals.
430 citations