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Synthesis and Photopolymerization Properties of Self-initiated Photopolymerized Acrylate Oligomers

Shi Bao Wen

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Abstract

4,4′-Thiodibenzenethiolhexanediol diacrylate(TBHDA) was synthesized via the thiol-ene reaction between 4,4′-thiodibenzenethiol and 1,6-hexanediol diacrylate.For comparison,the thiophenol modified di-trimethylolpropane tetraacrylate(TP-DiTMP4A) and hyperbranched acrylate(TP-P1000A) were also synthesized.The molecular structures of the oilgomers were characterized with 1H NMR and FTIR spectroscopies.The self-initiated photopolymerization behavior was investigated by photo-DSC measurements.The results show that TBHDA possesses the best self-initiated photopolymerization performance,indicating that the thioether linkage and acrylate double bond concentration both play key role in the self-initiated photopolymerization.

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What this paper is about

4,4′-Thiodibenzenethiolhexanediol diacrylate(TBHDA) was synthesized via the thiol-ene reaction between 4,4′-thiodibenzenethiol and 1,6-hexanediol diacrylate.For comparison,the thiophenol modified di-trimethylolpropane tetraacrylate(TP-DiTMP4A) and hyperbranched acrylate(TP-P1000A) were also synthesized.The molecular structures of the oilgomers were characterized with 1H NMR and FTIR spectroscopies.The self-initiated photopolymerization behavior was investigated by photo-DSC measurements.The results show that TBHDA possesses the best self-initiated photopolymerization performance,indicating that the thioether linkage and acrylate double bond concentration both play key role in the self-initiated photopolymerization.

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Available abstract

4,4′-Thiodibenzenethiolhexanediol diacrylate(TBHDA) was synthesized via the thiol-ene reaction between 4,4′-thiodibenzenethiol and 1,6-hexanediol diacrylate.For comparison,the thiophenol modified di-trimethylolpropane tetraacrylate(TP-DiTMP4A) and hyperbranched acrylate(TP-P1000A) were also synthesized.The molecular structures of the oilgomers were characterized with 1H NMR and FTIR spectroscopies.The self-initiated photopolymerization behavior was investigated by photo-DSC measurements.The results show that TBHDA possesses the best self-initiated photopolymerization performance,indicating that the thioether linkage and acrylate double bond concentration both play key role in the self-initiated photopolymerization.

Key concepts: Photopolymer, Acrylate, Acrylate polymer, Trimethylolpropane, Photoinitiator, Polymer chemistry, Materials science, Prepolymer

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Synthesis and Photopolymerization Properties of Self-initiated Photopolymerized Acrylate Oligomers — Research Paper | ScholarLens