Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 85: Issue 3
Photoinitiating behavior of macrophotoinitiator containing aminoalkylphenone group
Free-radical polymerization
Authors:
G. D. Ye Guangzhou Medical College Department of Chemistry Guangzhou People’s Republic of China 510182 Guangzhou People’s Republic of China 510182

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H. Zhou Guangzhou Medical College Obstetrics and Gynecology Research Institute of the NO. 2 Municipal People’s Hospital Guangzhou People’s Republic of China 510150 Guangzhou People’s Republic of China 510150

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J. W. Yang Sun Yat-Sen University School of Chemistry and Chemical Engineering Guangzhou People’s Republic of China 510275 Guangzhou People’s Republic of China 510275

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Z. H. Zeng Sun Yat-Sen University School of Chemistry and Chemical Engineering Guangzhou People’s Republic of China 510275 Guangzhou People’s Republic of China 510275

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Y. L. Chen Sun Yat-Sen University School of Chemistry and Chemical Engineering Guangzhou People’s Republic of China 510275 Guangzhou People’s Republic of China 510275

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Pages:
771–777
Online Publication Date:
27 Jun 2006
Publication Date:
01 Sep 2006
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-005-7271-x
Keywords:
differential photo-calorimetry; photoinitiator; photopolymerization; UV-curing
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Abstract  

Photoinitiating behaviors of oligo(α-aminoketones) (OAK) macrophotoinitiator containing aminoalkylphenone group on free-radical photopolymerization had been investigated by differential photo-calorimetry (DPC). The macrophotoinitiator showed comparative performance with those commercial photoinitiators with lower molecular mass. The effect of photoinitiator concentrations and UV intensity on the polymerization rate was investigated, and the value of exponential factor was found to be 0.5 at the beginning of polymerization, suggesting that the photopolymerization initiated by OAK followed biradical termination mechanism. Photosensitizer isopropyl thioxanthone (ITX) and oxygen severely restricted the polymerization in these systems. Photoinitiators with lower molecular mass showed higher reactivity than those with higher molecular mass.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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