UV-radiation curing of acrylate/epoxide systems

Decker, Christian; Viet, T. Nguyen Thi; Decker, D.; Weber-Koehl, E

doi:10.1016/s0032-3861(01)00065-9

Cited by 297 publications

(252 citation statements)

References 15 publications

Supporting

Mentioning

239

Contrasting

Unclassified

Order By: Relevance

“…Figure 2(b) indicated that the vinyl ether oligomer VESi underwent polymerization at a slower pace than the acrylate oligomer, as observed in the previous study [16]. One of the reasons of the slower UV-curing of vinyl ether oligomer lied in a poorly efficient initiation process, which was partly due to the low UV absorbance of aryliodonium salts.…”

Section: Influence Of Air On the Photopolymerizationsupporting

confidence: 69%

“…The polymerization of the sample exposed to both the UV beam and the analysis IR beam was followed in situ by RTIR spectroscopy. The time resolution of the instrument used was 0.1 s. The disappearance of each one of the two functional groups was monitored continuously by setting the wave number of the IR detection at the proper value: 1411 cm À1 for the acrylate double bond [16] and 3116 cm À1 for the vinyl ether double bond [19]. By operating the IR spectrophotometer in the absorbance mode, conversion vs. time curves were recorded.…”

Section: Kinetic Analysis Of the Photopolymerizationmentioning

confidence: 99%

“…While the conversion of the cationic polymerization of VESi decreased when the amount of acetic acid added increased (as shown in Figure 4(b)). It was well known that cationic polymerizations were sensitive to moisture and nucleophiles [16,19], so the addition of acetic acid made the conversion of the cationic polymerization of VESi decrease. The hybrid polymerization (PEGDA/VESi = 1/1 by weight) included the radical polymerization of PEGDA and cationic polymerization of VESi, and the conversion vs. time curve of respective oligomer was very similar to the one recorded upon UV irradiation of the neat oligomer (results not shown).…”

Section: Influence Of Air On the Photopolymerizationmentioning

confidence: 99%

“…Photoinitiated cationic polymerization, on the other hand, is practically nonterminating and not inhibited by oxygen, but has the disadvantage of water or nucleophile sensitivity. Free radical/cationic hybrid photopolymerization has been suggested as a way to combine the advantages of these two classes of photopolymerization [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Hydrophilic simultaneous interpenetrating polymer network silicone hydrogels prepared by hybrid photopolymerization

Wang

Liu²

2012

Designed Monomers and Polymers

View full text Add to dashboard Cite

Hydrophilic silicone hydrogels have been prepared by UV-initiated free radical/cationic hybrid polymerization of acrylate oligomer polyethylene glycol diacrylate (PEGDA) and bifunctional vinyl ether terminated polydimethylsiloxane oligomer (VESi). PEGDA was shown to polymerize faster and more extensively than VESi, which was further consumed upon storage of the sample in the dark. The radical polymerization of PEGDA was affected by the oxygen inhibition effect, while the cationic polymerization of VESi was influenced by the atmosphere humidity. The presence of a nucleophile acetic acid could hinder the polymerization of VESi, but exerted less influence on the polymerization of PEGDA. The results of the contact angle measurements indicated that highly hydrophilic surfaces were obtained by the interpenetrating polymer network technique.

show abstract

Section: Influence Of Air On the Photopolymerizationsupporting

confidence: 69%

Section: Kinetic Analysis Of the Photopolymerizationmentioning

confidence: 99%

Section: Influence Of Air On the Photopolymerizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Hydrophilic simultaneous interpenetrating polymer network silicone hydrogels prepared by hybrid photopolymerization

Wang

Liu²

2012

Designed Monomers and Polymers

View full text Add to dashboard Cite

show abstract

“…UV-initiated photopolymerization based on acrylates and methacrylates has received considerable attention due to the associated fast and solvent-free curing, multifunctionality, and negligible toxicity [13][14][15][16][17][18]. However, they are vulnerable to the inhibition of free-radical polymerization by oxygen.…”

Section: Resultsmentioning

confidence: 99%

Photocuring Behaviors of UV-Curable Perfluoropolyether-Based Fluoropolymers with and without Tertiary Amine

Cho¹,

Kim²,

Hong³

2014

OJOPM

View full text Add to dashboard Cite

UV-curable perfluoropolyether (PFPE)-based fluoropolymer (PFPE-DMA) was synthesized and the photocuring behaviors of PFPE-DMA/HDDA systems with and without tertiary triethyl amine (TEA) were investigated using photo-DSC under air and nitrogen atmospheres. Photo-DSC analysis revealed that N 2 purging and the presence of TEA mitigated oxygen inhibition in the photopolymerization of the UV-curable free-radical PFPE-DMA/ HDDA system. In addition, TEA synergistically acted as a coinitiator or photosynergist under nitrogen atmosphere, which increased the cure rate and percentage conversion for the photopolymerization of PFPE-DMA/ HDDA. TEA acted as both oxygen scavenger and photosynergist. The results presented here demonstrate that investigating the photocuring behaviors of PFPE-DMA/HDDA systems is very helpful to determine the optimal curing conditions for the PFPE-DMA fluoropolymer.

show abstract

Photopolymerization, Free Radical

Cai

Jessop

2004

Encyclopedia of Polymer Science and Technology

View full text Add to dashboard Cite

Free‐radical photopolymerizations, which use light energy to initiate chain‐producing reactions, have many advantages over thermal polymerizations, including solvent‐free systems, spatial and temporal control of initiation, and high speed processing capabilities. This article provides an overview of the components, kinetics, and applications of free‐radical photopolymerization systems. Two general classes of photoinitiator systems (unimolecular and bimolecular) are discussed, as well as systems that have been developed to meet the demands of specific applications. (Meth)acrylates, which are the most widely used monomers in photopolymerization processes, and other commercially important free‐radical monomers, are described. The kinetic treatment of free‐radical photopolymerizations is outlined, with special emphasis on the photoinitiation step and its impact on the rate of polymerization expression. Kinetic modeling concerns in reaction systems containing monomers with more than one reactive group and in systems utilizing specialized polymerization methods are also considered. Finally, applications for free‐radical photopolymers in the automotive, electronic, medical, optical, graphic arts, flooring, and furniture industries are presented. This article provides the scientist or engineer with fundamental considerations of free‐radical photopolymerizations, along with references for more advanced topical research.

show abstract

UV-radiation curing of acrylate/epoxide systems

Cited by 297 publications

References 15 publications

Hydrophilic simultaneous interpenetrating polymer network silicone hydrogels prepared by hybrid photopolymerization

Hydrophilic simultaneous interpenetrating polymer network silicone hydrogels prepared by hybrid photopolymerization

Photocuring Behaviors of UV-Curable Perfluoropolyether-Based Fluoropolymers with and without Tertiary Amine

Photopolymerization, Free Radical

Contact Info

Product

Resources

About