Photocopolymerizations of electron-rich olefins with electron-poor olefins by irradiation of their EDA complexes

Lee, Cherylyn; Hall, H. K.

doi:10.1021/ma00191a004

Cited by 46 publications

(19 citation statements)

References 3 publications

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“…With regards to UV‐curing coatings technologies, donor‐acceptor chemistry has been reported as a feasible alternative to acrylate‐based systems. With donor‐acceptor chemistry, free‐radical induced alternating photocopolymerization is achieved by mixing an electron‐deficient vinyl group with an electron‐rich vinyl group 36. The benefits of using donor‐acceptor chemistry include high flexibility in polymer backbone design, low toxicity of monomers, and comparable cure times to acrylate systems.…”

Section: Introductionmentioning

confidence: 99%

Novel in situ synthesis in the preparation of ultraviolet‐curable nanocomposite barrier coatings

Pavlacky

Ravindran

2012

J of Applied Polymer Sci

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Ultraviolet-curable nanocomposites containing organically modified nanoclays were prepared to serve as barrier coatings against oxygen and water permeation. A novel in situ synthesis technique was used to produce well-dispersed clays in an unsaturated polyester polymer before crosslinking. The in situ dispersion route was compared with nanocomposites prepared by mixing and sonication for several levels of nanoclay loading (1, 2, 5, and 10 wt %). The comparison of nanocomposite properties prepared from each processing method demonstrated that the in situ preparation technique led to better clay disper-sion as verified by transmission electron microscopy. The in situ route for nanoclay dispersion produced nanocomposites with lower water vapor transmission and permeability compared with the sonicated dispersion method. The impact on cure characteristics, mechanical properties, thermal stability, and optical clarity of the nanocomposites were also compared.

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Section: Introductionmentioning

confidence: 99%

Novel in situ synthesis in the preparation of ultraviolet‐curable nanocomposite barrier coatings

Pavlacky

Ravindran

2012

J of Applied Polymer Sci

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“…[7 -10] The photochemistry of quinoid monomers is an interesting topic: depending on the reaction partner, the triplet state of quinoid monomers can abstract hydrogen atoms, [3,6] react by electron transfer [4,5] or lead to the collapse of an exciplex into a biradical/zwitterion. [9,11] Each of these mechanisms has been forwarded as the cause of photoinitiation. Experimental evidence and kinetic considerations lead us to favour a mechanism based on radical ions following electron transfer.…”

Section: Introductionmentioning

confidence: 99%

Initiation of Free Radical N-Alkylmaleimide Polymerisation by Monomer Radical Cations. A Low Temperature EPR Study

Sonntag

Janovský²,

Naumov

et al. 2001

Macromol. Chem. Phys.

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“…Recently, Hall et al [7][8][9][10][11] reported that certain donor/acceptor monomer combinations can polymerize upon exposure to light in the absence of added photoinitiator.…”

Section: Introductionmentioning

confidence: 99%

Photopolymerization of Dialkylfumarates with Electron Donor Monomers via Charge-Transfer Complex.

Katogi

Miller

Hoyle

et al. 1999

J. Photopol. Sci. Technol.

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Fumarate esters with abstractable hydrogens were found to copolymerize via photoinitiation with a variety of electron donor monomers at a relatively rapid rate under both air and nitrogen. Under air, their copolymerization rates were much faster than monofunctional or difunctional acrylates when a photoinitiator was used to initiate polymerization. Mixtures of dialkylfumarates and N-vinyl formamide (NW) had copolymerization rates faster than dialkylfumarates and N-vinyl pyrrolidone or vinyl ethers. Similar correlations were observed regardless of addition of photoinitiator. From the curing test, difunctional fumarate/NVF system showed faster curing speed than those of multifunctional acrylate with photoinitiator systems.

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Photocopolymerizations of electron-rich olefins with electron-poor olefins by irradiation of their EDA complexes

Cited by 46 publications

References 3 publications

Novel in situ synthesis in the preparation of ultraviolet‐curable nanocomposite barrier coatings

Novel in situ synthesis in the preparation of ultraviolet‐curable nanocomposite barrier coatings

Initiation of Free Radical N-Alkylmaleimide Polymerisation by Monomer Radical Cations. A Low Temperature EPR Study

Photopolymerization of Dialkylfumarates with Electron Donor Monomers via Charge-Transfer Complex.

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