Phosphorus Compounds as Photoinitiators for Radicalic Polymerization

Macarie, Lavinia; Ilia, Gheorghe; Iliescu, Smaranda; Popa, Adriana; Dehelean, Gheorghe; Manoviciu, I.; Petrean, A.; Abadie, M. J. M.

doi:10.1080/15421400490478957

Cited by 5 publications

(7 citation statements)

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“…This result is directly connected to the optimum experimental conditions for final properties of the films, i.e. pendulum hardness, which gives maximum values for 3 % photoinitiator concentration [3]. Moreover, a photoinitiator concentration of 3 % is usual in practice for acylphosphine oxides [9].…”

Section: Influence Of the Concentrationmentioning

confidence: 99%

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The influence of temperature and photoinitiator concentration on photoinitiated polymerization of diacrylate monomer

Macarie

Ilia

2005

Open Chemistry

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The behavior of p-methoxybenzoyldiphenylphosphine oxide, previously synthesized, as a photoinitiator for the polymerization of diacrylate monomer, in the presence of 3 % (w/w) tertiary amine (triethyl amine) as synergist additive, was studied. The influence of temperature in the range 30-90 • C at 3 % (w/w) photoinitiator concentration and the influence of the photoinitiator concentration in the range 0.5-3.5 % (w/w) at 30 • C was investigated by differential scanning photocalorimetry (photo-DSC). In all experiments the photopolymerization was performed at constant light intensity (3 mW cm −2 ). The maximum conversion was obtained at temperature of 90 • C at 3 % (w/w) photoinitiator concentration and 3 % (w/w) triethyl amine. The optimal concentration of photoinitiator to obtain maximum conversion was 3 % (w/w), at 30 • C. No thermal polymerization occurred at higher temperature.

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Section: Influence Of the Concentrationmentioning

confidence: 99%

“…Differential scanning photocalorimetry (photo-DSC) was used to follow the reaction. The aroylphosphine oxide derivative: p-methoxybenzoyldiphenylphosphine oxide, previously obtained [3], was used as the photoinitiator, because it showed high photoinitiating efficiency compared with the commercial product Lucirin TPO (BASF) [4].…”

Section: Introductionmentioning

confidence: 99%

The influence of temperature and photoinitiator concentration on photoinitiated polymerization of diacrylate monomer

Macarie

Ilia

2005

Open Chemistry

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“…If MBDPPO is used as photoinitiator, the PH of the clear coating is 235 s 8. Figures 5–8 summarize the UV‐curing results considering different particle size distribution of pigment and various pigment content.…”

Section: Resultsmentioning

confidence: 99%

“…In this article is reported the influence of the pigment on the appearance and mechanical properties of the UV‐cured acrylic coatings, using 4‐methoxybenzoyl diphenylphosphine oxide, previously reported as a new effective photoinitiator 8. The particle size, content, and natural color of the pigment were the studied parameters.…”

Section: Introductionmentioning

confidence: 99%

Influence of pigment properties on UV‐curing efficiency

Macarie

Ilia

2007

J of Applied Polymer Sci

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ABSTRACT:The curable formulations containing monomer-diacrylate, photoinitiator-p-methoxybenzoyldiphenylphosphine oxide/benzyldimethylketal, additive reactive-triethylamine, and inorganic thermoresistant pigments-white, red, green, and blue were cured by UV exposure films. A series of experiments was carried out to investigate the relationship between the particle size distribution of the inorganic pigment and the colorimetric and mechanical properties of the UV acrylic curable coatings. Pendulum hardness and appearance of the films depend on the content and particle size distribution of the pigment. Optimal particle size distribution and pigment content were established to obtain the best films concerning their pendulum hardness and chromatic parameters.

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“…Even though these classes of tervalent phosphorus esters were synthesized earlier, the interest is constantly increasing due to their use, especially in Michaelis-Arbuzov [19][20][21][22], Perkow [23][24][25], and Kabachnik-Fields reactions [26].…”

Section: Introductionmentioning

confidence: 99%