Journal
EUROPEAN POLYMER JOURNAL
Volume 44, Issue 4, Pages 1046-1052Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2008.01.039
Keywords
cationic UV curing; spiroorthocarbonate; shrinkage; epoxy resin; DSC; DMTA
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The synthesis of an epoxy functionalized spiroorthocarbonate (SOC) is reported. The obtained monomer has been used a slow shrinkable additive in cationic UV curing of a commercially available dicycloepoxy resin. A polymer network flexibilization was evidenced by increasing the SOC content in the photocurable formulation. It has been demonstrated that SOC acts as shrinkage reduction additive reaching expansion on volume after polymerization in the presence of 10 wt% of the functionalized spiroorthocarbonate. (c) 2008 Elsevier Ltd. All rights reserved.
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