Preparation and characterization of phosphine oxide containing organosilica hybrid coatings by photopolymerization and sol–gel process

Karataş, Sevim; Hoşgör, Zuhal; Kayaman‐Apohan, Nilhan; Güngör, Atilla

doi:10.1016/j.porgcoat.2008.09.022

Cited by 32 publications

(23 citation statements)

References 26 publications

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“…The interest is that those resins are applied in a wide range of application (coatings, adhesives, resin matrices, etc), they are adherent to many substrates, and they are also temperature and solvent resistant. As logically expected, reported studies [4,22,23,57,58] show a decrease in hardness with an increasing (resin)/(inorganic part) ratio, since the organic part bring ductility and flexibility and inorganic network cross-linking becomes less effective. Altintas et al [23] prepared a series of UV-curable I/O hybrid based on TEOS and MEMO as silica precursors and maleimide-modified epoxy resin and urethane acrylate oligomer as organic content.…”

Section: Synthesis Parameters Influence 31 Organic Contentsupporting

confidence: 64%

“…Indeed, with the increasing inorganic content of the material, hardness and abrasion resistance are improved. The group of Gungor reports the same conclusion using close systems [4,22]. Another example, reported by Wouters et al [24], concerns a system based on acrylate, polyurethane resin, MEMO and TEOS.…”

Section: Synthesis Parameters Influence 31 Organic Contentmentioning

confidence: 69%

“…This review is only focused on the first solution and more precisely on silica-based coatings obtained by the sol-gel process, allowing fulfilling all the required criteria (in terms of implementation facility and performances). Actually, many properties can be reached for such coated device: anti-reflection, flame retardant [4], UV protection [5], self-cleaning [6], etc. As said above, such new functionalities become interesting only if mechanical properties of the whole device can be enhanced.…”

Section: Introductionmentioning

confidence: 99%

“…These precursors, which have to be thermally or photo-chemically cured leads to an organic network, tangled up to the inorganic one. Close to this approach, it is also reported that the addition of pure organic monomers to the network former performs a double reticulation and creates a convolution of both O/I networks [4,10,[22][23][24][25]. In any case, sol-gel process mastery is primordial to prepare a stable sol, able to be deposited and reticulated in a three dimensions O/I hybrid network.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical properties of sol–gel coatings on polycarbonate: a review

Bail

Benayoun

Toury

2015

J Sol-Gel Sci Technol

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Organic/inorganic hybrid coatings prepared via the sol-gel process have received lot of interests during the early twenty-first century. Devices obtained thanks to this low-temperature route display a large panel of bulk and surface properties that can be modulated according to the target. Moreover, this versatility enables to offer solutions in various domains and industrial applications such as microelectronics, optic, aeronautic, automotive, health. When the aimed application required polymer as substrate, the use of sol-gel process takes its full interest as soft chemistry. This review is dedicated to mechanical properties improvement of a common polymer substrate, e.g., polycarbonate, when a transparent sol-gel coating recovered it. Graphical Abstract

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Section: Synthesis Parameters Influence 31 Organic Contentsupporting

confidence: 64%

Section: Synthesis Parameters Influence 31 Organic Contentmentioning

confidence: 69%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Mechanical properties of sol–gel coatings on polycarbonate: a review

Bail

Benayoun

Toury

2015

J Sol-Gel Sci Technol

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“…Many polysiloxanes have been developed to improve coating performance through cold blend or chemical modification. [5][6][7] As a well-accepted and environment-friendly technology in coating area, [8][9][10][11][12][13] the UV curing has also attracted great attention in the application of polysiloxanes. One important approach for synthesis of UV curable polysiloxanes is hydrolysis and condensation of organoalkoxysilanes R 0 Si(OR) 3 , where R 0 is a UV curable functional group via radical or cationic means.…”

Section: Introductionmentioning

confidence: 99%

Cationic UV curing behavior and thermal properties of oxetane‐modified polysiloxane prepared from tetraethyl orthosilicate

Zhan

Xie

Shi

2011

J of Applied Polymer Sci

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The oxetane-modified polysiloxane (OxePSiO) was synthesized via the partial hydrolysis/condensation of tetraethyl orthosilicate (TEOS) and then transesterification reaction with 3-ethyl-3-(hydroxymethyl)oxetane (EHO), and characterized by FT-IR, 1 H NMR, 13 C NMR, and 29 Si NMR spectroscopy. Using the water/ TEOS molar ratios of 0.8-1.2, the number-average molecular weights and polydispersity indices were obtained by GPC to range from 1.013 to 2.716 g mol À1 and around 2.0, respectively. The viscosity of Oxe-PSiO prepared from the water/TEOS molar ratio of 1.2 sharply increased to 177,545 cps from 438 cps of that from the molar ratio of 0.8. A series of cationic UV-curable formulations were prepared by blending the Oxe-PSiO synthesized with the water/TEOS molar ratio of 1.0 into an commercial oxetane-based resin, 3,3 0 -[oxydi(methylene)]bis(3-ethyloxetane), in different weight ratios. The photopolymerization kinetics studied by photo-DSC in the presence of triphenylsulphonium hexafluoroantimonate as a cationic photoinitiator showed that both the maximum photopolymerization rate and final oxetane conversion in the cured film decreased with increasing Oxe-PSiO loading mainly due to the sharp increase in viscosity. The DMTA and DSC results both indicated the improvement in thermal stability, showing 12 and 13.4 C, respectively, higher T g for the cured film with 50 wt % Oxe-PSiO loading compared with the pure polymer. Moreover, the temperatures (T 10% and T 50% ) at the weight loss of 10 and 50% and final char yields measured by TGA increased with increasing Oxe-PSiO content. After adding 50 wt % Oxe-PSiO, compared with the pure polymer the T 10% increased from 349 to 361 C, while the T 50% increased from 409 to 424 C, and with a char yield increase of 8.2% at 800 C. In addition, its greatly increased crosslinking density due to the formation of silica network resulted in the enhancement in pencil hardness from B of the pure polymer to 2H grade.

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Nonisocyanate polyurethane/silica hybrid coatings via a sol–gel route

Hoşgör¹,

Kayaman‐Apohan²,

Karataş³

et al. 2011

Adv Polym Technol

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Polyurethane/silica hybrids by a nonisocyanate route were prepared by reacting cyclic carbonate-modified bis(4-glycidyloxy phenyl)phenyl phosphine oxide (BGPPO), and poly(propyleneglycol)diglycidyl ether (PPG-DGE) with hexamethylene diamine. The incorporation of silica was achieved via a sol-gel method. The effect of silica and phosphine oxide moiety on polyurethane coating properties was studied by physical, mechanical, and thermal tests. Modulus and hardness of the coatings were enhanced by increasing the amount of silica and phosphine oxide based resin. The improvement in flame retardancy and thermal stability of nanocomposites was proved with increased char yield values and decomposition temperatures in thermogravimetric analyses. C 2011 Wiley Periodicals, Inc. Adv Polym Techn 00: 1-11, 2011; View this article online at wileyonlinelibrary.com.

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Preparation and characterization of phosphine oxide containing organosilica hybrid coatings by photopolymerization and sol–gel process

Cited by 32 publications

References 26 publications

Mechanical properties of sol–gel coatings on polycarbonate: a review

Mechanical properties of sol–gel coatings on polycarbonate: a review

Cationic UV curing behavior and thermal properties of oxetane‐modified polysiloxane prepared from tetraethyl orthosilicate

Nonisocyanate polyurethane/silica hybrid coatings via a sol–gel route

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