University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Examining thermal stability and structure property relationships in coatings based on linear aromatic poly(methoxy-thiocyanurate)s

Hamerton, Ian, Howlin, Brendan and Tilbrook, DA (2013) Examining thermal stability and structure property relationships in coatings based on linear aromatic poly(methoxy-thiocyanurate)s Polymer Degradation and Stability, 98 (11). pp. 2201-2207.

[img]
Preview
Text
Tilbrook_polydeg.pdf - ["content_typename_Published version (Publisher's proof or final PDF)" not defined]
Available under License : See the attached licence file.

Download (814kB) | Preview
[img]
Preview
PDF (licence)
SRI_deposit_agreement.pdf
Available under License : See the attached licence file.

Download (33kB) | Preview

Abstract

A series of copoly(methoxy-thiocyanurate)s is prepared in good yield and purity, and fully characterised. Many of the resulting polymers, formed at room temperature using phase transfer catalysis, can be cast into films with good resilience and thermal stability (some examples suffer practically no mass loss when held isothermally at 190 °C and only display appreciable losses when held continuously at 225 °C). Char yields of 61-64% are achieved in nitrogen depending on backbone structure. Some problems were encountered with solubility, particularly with copolymers, which limited molecular weights analysis, but values of Mn = 7000-10,000 g mol-1 were obtained for the polycyanurate and polythiocyanurate homopolymers. DSC reveals polymerisation exotherms with maxima at 197-207 °C (ΔHp = 39-48 kJ/mol), which are believed to be due to isomerisation of the (activation energies span 172-205 kJ/mol), since X-ray powder diffraction measurements reveal no evidence of crystalline structure in the resulting product.

Item Type: Article
Authors :
NameEmailORCID
Hamerton, IanI.Hamerton@surrey.ac.ukUNSPECIFIED
Howlin, BrendanB.Howlin@surrey.ac.ukUNSPECIFIED
Tilbrook, DAUNSPECIFIEDUNSPECIFIED
Date : 28 July 2013
Identification Number : 10.1016/j.polymdegradstab.2013.08.023
Copyright Disclaimer : © 2013 Published by Elsevier Ltd.
Depositing User : Symplectic Elements
Date Deposited : 05 Jul 2017 11:04
Last Modified : 05 Jul 2017 11:04
URI: http://epubs.surrey.ac.uk/id/eprint/808359

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800