UV-curable formulations for UV-transparent optical fiber coatings

Masson, Frédéric; Decker, Christian; André, S.; Andrieu, Xavier

doi:10.1016/s0300-9440(03)00122-x

Cited by 69 publications

(33 citation statements)

References 13 publications

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“…They are well known as efficient intiators of polymerization of various kinds of monomers [1][2][3][4][5][6][7]. Such initiators as benzyl ketals, , -dialkoxyacetophenones and -hydroxyalkylphenones contain chromophoric groups that absorb radiation in ultraviolet or visible range and undergo photolysis with formation of free radicals.…”

Section: Introductionmentioning

confidence: 99%

Effect of Irgacure 651 Initiator on Poly(Methyl Methacrylate) Photostability Studied by UV-Vis Spectroscopy

Kaczmarek¹

2013

TOCPCJ

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Commercial initiator -2,2-dimethoxy-2-phenyl acetophenone (Irgacure 651, Ciba, Switzerland) was introduced to poly(methyl methacrylate) (PMMA) matrix to enhance the polymer degradation. Two types of thin polymeric films (PMMA and PMMA+5% Irgacure) were UV-irradiated in laboratory conditions (Xenon lamp, air atmosphere, room temperature). The photochemical changes in pure PMMA and PMMA doped with the initiator were studied by absorption spectroscopy in the UV-Vis range. Separately, the behaviour of the initiator in the acetonitrile (ACN) solution upon UVradiation was investigated at the same conditions. It was found that the addition of the Irgacure 651 to PMMA accelerated the photooxidative degradation, particularly at the early stages of exposure. The efficiency of formation of chromophoric groups in PMMA in the presence of the Irgacure initiator was significantly greater than in pure polymer. This suggests that the free-radical products of the initiator photolysis (mainly benzoyl radicals) are able to abstract hydrogen atoms from PMMA molecules.

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Section: Introductionmentioning

confidence: 99%

Effect of Irgacure 651 Initiator on Poly(Methyl Methacrylate) Photostability Studied by UV-Vis Spectroscopy

Kaczmarek¹

2013

TOCPCJ

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“…The meth(acrylate) group linked to the siloxane chain, gives reactivity, absorptivity, coupling properties, etc [21]. The transparency of siloxane-based networks are used for metal coatings, and for the protection of glass [22]. The meth(acrylate) functionalized siloxanes not only adds the fast cure of (meth)acylates, but also brings a high modulus, low elongation, low T g , and solvent resistance [23].…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Film Properties of Telechelic Methacrylic Polysiloxanes with Cycloaliphatic Substituents Groups for UV-Curable Applications

Chakraborty

Soucek

2010

Silicon

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Siloxanes with either methyl, cyclopentyl, or cyclohexyl groups were functionalized with methacrylate groups, then UV-cured using a free radical photo-initiator and a reactive diluent. Hexanediol dimethacrylate (0.1 wt%) was used as the reactive diluent. After curing, the mechanical, the viscoelastic, the coating, and the release properties of the cured films were studied. In addition, the oxygen permeability and the X-ray diffraction scans were evaluated. The crosslink density reduced with increase in siloxane substituent size. The oxygen permeability was dependent on crosslink density, and increased with increasing substituent size. The increase in permeability, and thus free volume, was supported by X-ray studies which showed an increase in d-spacing with increasing alkyl size. The hardness, adhesion, and solvent resistance increased as the size of the substituent increased (methyl to cyclopentyl to cyclohexyl) in the siloxane backbone. The adhesion and re-adhesion forces increased with an increase in size of the backbone substituents. There was also an increase in the advancing and the receding contact angles with the increase in substituent size.

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“…A large variety of properties, depending on the arrangement of acrylic structural units on the macromolecular chain, was obtained, such as anticorrosive protective films and finishing materials for the leather industry [2][3][4], bending matter for mag-netic media [5,6], mounts for printing ink [7], coating for optic fibres [8][9][10], carbon fibres [11], adhesives [12], gas and liquid separating membranes [13], etc.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Properties of Polyetherurethane Urea Amide Acrylates

Oprea¹,

Oprea

2009

Designed Monomers and Polymers

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Several UV-and heat-curable polyurethane urea amide acrylate polymers were synthesized from 4,4 -diphenyl methane diisocyanate, poly(1,2-ethane diol), poly(1,3-propane diol), poly(1,4-butane diol), 1,6-hexamethylene diamine and acrylic acid. We have investigated the effects of polyol type and of the length of methylenic chain on their properties. The increase of polyol methylenic chain led to a lower glass-transition temperature, an increasing tensile modulus and strength and increased thermal stability. These soft elastic segment structures, in addition to the physical and chemical cross-linked nature of the hard segment, provide enough cross-link sites to have an elastomeric behaviour.

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UV-curable formulations for UV-transparent optical fiber coatings

Cited by 69 publications

References 13 publications

Effect of Irgacure 651 Initiator on Poly(Methyl Methacrylate) Photostability Studied by UV-Vis Spectroscopy

Effect of Irgacure 651 Initiator on Poly(Methyl Methacrylate) Photostability Studied by UV-Vis Spectroscopy

Mechanical and Film Properties of Telechelic Methacrylic Polysiloxanes with Cycloaliphatic Substituents Groups for UV-Curable Applications

Synthesis and Properties of Polyetherurethane Urea Amide Acrylates

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