Results 11 to 20 of about 12,273 (192)

Synthesis of Polystyrene/MCM–41 Nanocomposites through AGET ATRP and ARGET ATRP [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2015
Polystyrene/MCM–41 nanocomposites were synthesized by atom transfer radical polymerization (ATRP) at 110°C. Activators generated by electron transfer (AGET) and activators regenerated by electron transfer (ARGET), as two novel initiation techniques, for ...
Khezrollah Khezri   +2 more
doaj   +2 more sources

Study of Atom Transfer Radical Polymerization of Styrene and Its Gel Effect by Monte Carlo Simulation Method [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2009
Atom transfer radical polymerization (ATRP) of styrene was carried out at 105°C and a Monte Carlo simulation was employed to model the system. The variations of monomer conversion, the initiator concentration, average molecular weight, and molecular ...
M. Najafi   +3 more
doaj   +1 more source

Synergy of Modified Lignin and p-Coumaric Acid for Improving the Function of Sun-protection in Sunscreen

open access: yesBioResources, 2023
Lignin is a potential natural sunlight protector because its benzene derivative structure can absorb UV rays. Pure lignin is not good enough for sunblock because lignin is not fully dispersed in cream, and the range of absorbed UV rays is not broad.
Rui Wen, Shiyu Fu, Hui Zhang
doaj   +2 more sources

PVDF-Based Fluoropolymer Modifications via Photoinduced Atom Transfer Radical Polymerizations

open access: yesAdvances in Polymer Technology, 2022
Graft modifications of PVDF fluoropolymers have been identified as the efficient route to improve the properties and expand the applications. Taking advantage of C-F and C-Cl bonds in the repeat units, atom transfer radical polymerizations (ATRP) were ...
Nuo Xu   +12 more
doaj   +1 more source

The application of copper and other zero-valent metals surfaces in oxygen tolerant SI-ATRP. [PDF]

open access: yes, 2023
openLe polimerizzazioni radicaliche permettono la produzione di milioni di tonnellate di materie plastiche ogni anno; esempi di polimeri derivanti da questi processi sono il polietilene, il polipropilene isotattico e il polivinilcloruro, materiali che ...
BERTOLO, ALESSANDRO
core  

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

Protein nanoreactors and native enzymes for controlled/living radical polymerization [PDF]

open access: yes, 2013
The present PhD thesis entitled ‚Protein Nanoreactors and Native Enzymes for Controlled/Living Radical Polymerization‘ began with the hypothesis that protein-catalyst conjugates are able to beneficially influence controlled/living radical polymerization,
Renggli, Kasper
core   +1 more source

Scalable Air-Tolerant μL-Volume Synthesis of Thick Poly(SPMA) Brushes Using SI-ARGET-ATRP

open access: yes, 2023
We present a facile procedure for preparing thick (up to 300 nm) poly(3-sulfopropyl methacrylate) brushes using SI-ARGET-ATRP by conducting the reaction in a fluid film between the substrate and a coverslip.
Sissi de Beer (7846298)   +3 more
core   +1 more source

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

Effect of Reactant Concentration Variations on the Kinetics of Atom Transfer Radical Polymerization of Acrylonitrile [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2013
Polyacrylontrile synthesis, via atom transfer radical polymerization, is studied in various initiator concentrations, transitional metal catalyst and different concentrations of CuBr2.
H. Roghani-Mamaqani   +3 more
doaj   +1 more source

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