Influence of actinic wavelength on properties of light-cured interpenetrating polymer networks

F. Karasu Kilic, C. Rocco, M. Lecompère, C. Croutxé-Barghorn, X. Allonas, Yujing Zhang, A.C.C. Esteves, Leendert van der Ven, Rolf van Benthem, Bert de With

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)

Abstract

Interpenetrating polymer networks (IPNs) composed of different acrylate/epoxide ratios, were synthesized under UV and visible-LED curing conditions. The formation of the IPNs was explored in terms of phase separation, polymerization mechanisms, final mechanical properties and surface morphology. For these purpose, we uniquely combined results of miscibility investigations, confocal Raman microscopy, dynamical mechanical analysis and atomic force microscopy. Transparent films were obtained for all compositions and both irradiation sources. The thermo-mechanical properties of different IPNs were associated to the presence of acrylate- or epoxide-rich phases, as well as, mixed interphases, resulting from the high interpenetration between both networks. Although the final conversions were similar under UV and visible-LED irradiation, we have found evidence that the visible-cured samples provide higher IPN homogeneity and lower Tg, for a higher epoxide content. To explain this trend, the mechanisms and sequence of the acrylate or epoxide networks formation, under UV or LED irradiation, is discussed.

LanguageEnglish
Pages1378-1390
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume54
Issue number10
DOIs
StatePublished - 15 May 2016

Fingerprint

Interpenetrating polymer networks
Epoxy Compounds
Light emitting diodes
Wavelength
Irradiation
Mechanical properties
Phase separation
Surface morphology
Curing
Atomic force microscopy
Microscopic examination
Solubility
Polymerization
Chemical analysis
acrylic acid

Keywords

  • Acrylate/epoxide polymerization
  • Interpenetrating polymer networks
  • LED curing
  • Morphology characterization
  • Thermo-mechanical analysis

Cite this

Karasu Kilic, F., Rocco, C., Lecompère, M., Croutxé-Barghorn, C., Allonas, X., Zhang, Y., ... de With, B. (2016). Influence of actinic wavelength on properties of light-cured interpenetrating polymer networks. Journal of Polymer Science, Part A: Polymer Chemistry, 54(10), 1378-1390. DOI: 10.1002/pola.27988
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Influence of actinic wavelength on properties of light-cured interpenetrating polymer networks. / Karasu Kilic, F.; Rocco, C.; Lecompère, M.; Croutxé-Barghorn, C.; Allonas, X.; Zhang, Yujing; Esteves, A.C.C.; van der Ven, Leendert; van Benthem, Rolf; de With, Bert.

In: Journal of Polymer Science, Part A: Polymer Chemistry, Vol. 54, No. 10, 15.05.2016, p. 1378-1390.

Research output: Contribution to journalArticleAcademicpeer-review

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AU - van Benthem,Rolf

AU - de With,Bert

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N2 - Interpenetrating polymer networks (IPNs) composed of different acrylate/epoxide ratios, were synthesized under UV and visible-LED curing conditions. The formation of the IPNs was explored in terms of phase separation, polymerization mechanisms, final mechanical properties and surface morphology. For these purpose, we uniquely combined results of miscibility investigations, confocal Raman microscopy, dynamical mechanical analysis and atomic force microscopy. Transparent films were obtained for all compositions and both irradiation sources. The thermo-mechanical properties of different IPNs were associated to the presence of acrylate- or epoxide-rich phases, as well as, mixed interphases, resulting from the high interpenetration between both networks. Although the final conversions were similar under UV and visible-LED irradiation, we have found evidence that the visible-cured samples provide higher IPN homogeneity and lower Tg, for a higher epoxide content. To explain this trend, the mechanisms and sequence of the acrylate or epoxide networks formation, under UV or LED irradiation, is discussed.

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Karasu Kilic F, Rocco C, Lecompère M, Croutxé-Barghorn C, Allonas X, Zhang Y et al. Influence of actinic wavelength on properties of light-cured interpenetrating polymer networks. Journal of Polymer Science, Part A: Polymer Chemistry. 2016 May 15;54(10):1378-1390. Available from, DOI: 10.1002/pola.27988