TITLE

Design and performance of a thin-film calorimeter for quantitative characterization of photopolymerizable systems

AUTHOR(S)
Roper, Todd M.; Guymon, C. Allan; Hoyle, Charles E.
PUB. DATE
May 2005
SOURCE
Review of Scientific Instruments;May2005, Vol. 76 Issue 5, p054102
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A thin-film calorimeter (TFC) was designed for the quantitative characterization of photopolymerizable systems. A detailed description of its construction indicates the ease with which a TFC can be assembled and the flexibility inherent in its design. The mechanics of operation were optimized to yield a significantly faster instrument response time than other calorimetric methods such as photodifferential scanning calorimetry (photo-DSC). The TFC has enhanced sensitivity, more than an order of magnitude greater linear response range to changes in light intensity than that of the photo-DSC, resulting in the ability to measure both smaller and larger signals more accurately. The photopolymerization exotherm curves are reproducible and can be collected over a broad range of film thicknesses.
ACCESSION #
17023875

 

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