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Photopolymerization kinetics and volume shrinkage of 1,6-hexanediol diacrylate at different temperature

Paper ID Volume ID Publish Year Pages File Format Full-Text
26662 43969 2013 6 PDF Available
Title
Photopolymerization kinetics and volume shrinkage of 1,6-hexanediol diacrylate at different temperature
Abstract

Photopolymerizaiton has become a well-accepted technology and was widely used in various commercial applications. Curing temperature had important influence on the photopolymerization kinetics. Polymerization shrinkage was one of the primary reasons leading to some deficiencies of photopolymerization materials. In this article, low temperature photopolymerization kinetics of 1,6-hexanediol diacrylate at solid state were investigated by using differential scanning photocalorimetry and real-time FTIR spectroscopy. Both the results showed that conversion and polymerization rate decreased with the decrease of curing temperature and initiator concentration. Because the testing principle of the two methods were different, the results investigated by real-time FTIR spectroscopy was larger than that investigated by differential scanning photocalorimetry. The volume shrinkage in low temperature was investigated by using reflective laser scanning and it also decreased with the decrease of curing temperature and initiator concentration.

► Low temperature photopolymerization of 1,6-hexanediol diacrylate at solid state could occur. ► Conversion decreased with the decrease of temperature and initiator concentration. ► Polymerization rate decreased with the decrease of temperature and initiator concentration. ► The conversion investigated by real-time FTIR spectroscopy was larger than that investigated by photo-DSC. ► Volume shrinkage decreased with the decrease of temperature and initiator concentration.

Keywords
Kinetics; Low temperature; Photopolymerization; Solid state; Volume shrinkage
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Photopolymerization kinetics and volume shrinkage of 1,6-hexanediol diacrylate at different temperature
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 252, 15 January 2013, Pages 216–221
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us