Results 31 to 40 of about 44,944 (293)

Photoinduced Miniemulsion Atom Transfer Radical Polymerization [PDF]

open access: yesACS Macro Letters, 2018
Photomediated atom transfer radical polymerization (photoATRP) of (meth)acrylic monomers was conducted in miniemulsion media. The polymerization procedures took advantage of an ion-pair catalyst formed by interaction of Cu/TPMA2 (TPMA = tris(2-pyridylmethyl)amine) and an anionic surfactant, sodium dodecyl sulfate (SDS).
Yi Wang   +2 more
openaire   +2 more sources

Synthesis of cellulose based graft polymers using metal-catalyzed living radical polymerization [PDF]

open access: yesشیمی کاربردی روز, 2016
A copolymer composed of styrene and acrylonitrile was grafted onto cellulose backbone by free radical polymerization and atom transfer radical polymerization (ATRP) method.
مجتبی عباسیان   +1 more
doaj   +1 more source

Metal-Free Atom Transfer Radical Polymerization [PDF]

open access: yesJournal of the American Chemical Society, 2014
Overcoming the challenge of metal contamination in traditional ATRP systems, a metal-free ATRP process, mediated by light and catalyzed by an organic-based photoredox catalyst, is reported. Polymerization of vinyl monomers are efficiently activated and deactivated with light leading to excellent control over the molecular weight, polydispersity, and ...
Treat, Nicolas J   +7 more
openaire   +6 more sources

Atom Transfer Radical Polymerization of Styrene in Presence of Mesoporous Silica Nanoparticles: Application of Reverse, Simultaneous Reverse and Normal Initiation Techniques [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2014
Atom transfer radical polymerization (ATRP) of styrene in presence of mesoporous silica nanoparticles was carried out at 110 °C. Reverse atom transfer radical polymerization (RATRP) and simultaneous reverse and normal initiation for atom transfer radical
Khezrollah Khezri   +3 more
doaj   +1 more source

Biofunctional and Biomimetic Polymer Brushes Prepared via Surface-Initiated Atom Transfer Radical Polymerization

open access: yesCHIMIA, 2008
Surface-initiated controlled radical polymerization is a powerful strategy to tailor the chemical and physical surface properties of materials.
Laurent Lavanant, Harm-Anton Klok
doaj   +1 more source

Catalytic polymeric nanoreactors : more than a solid supported catalyst [PDF]

open access: yes, 2012
Polymeric nanostructures can be synthesized where the catalytic motif is covalently attached within the core domain and protected from the environment by a polymeric shell.
Bosman, Liu, Wang, Yan
core   +2 more sources

Advances in Organocatalyzed Atom Transfer Radical Polymerization

open access: yesAdvances in Polymer Technology, 2019
Atom transfer radical polymerization (ATRP) is one of the most robust tools to prepare well-defined polymers with precise topologies and architectures. Although series of improved ATRP methods have been developed to decrease the metal catalyst loading to
Xin Hu, Ning Zhu, Kai Guo
doaj   +1 more source

Controlled atom transfer radical polymerization of MMA onto the surface of high-density functionalized graphene oxide [PDF]

open access: yes, 2014
We report on the grafting of poly(methyl methacrylate) (PMMA) onto the surface of high-density functionalized graphene oxides (GO) through controlled radical polymerization (CRP). To increase the density of surface grafting, GO was first diazotized (DGO),
Jin Chung, Mukesh Kumar, Seung Hur
core   +2 more sources

Supramolecular control over self-assembly and double thermoresponsive behavior of an amphiphilic block copolymer [PDF]

open access: yes, 2020
A poly(ethylene glycol)-b-poly[N, N-dimethylacrylamide-ran-2-acrylamidoethyl nonanoate] (PEG-b-P(DMA-AAEN)) block copolymer has been demonstrated to show double thermoresponsive behavior in aqueous solution in the presence of hydroxypropylated ...
Hoogenboom, Richard   +5 more
core   +1 more source

Cellulose Modification Through Grafting of Polyacrylonitrile by Atom Transfer Radical Polymerization [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2015
In addition to properties such as biocompatibility and biodegradability, cellulosic natural fibers have a higher strength property than the synthetic polymers and glass fibers. So they are suitable alternatives to synthetic and glass fibers.
Mojtaba Abbasian   +3 more
doaj   +1 more source

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