Results 11 to 20 of about 19,867 (238)

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   +3 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

Aqueous SARA ATRP using inorganic sulfites [PDF]

open access: yesPolymer Chemistry, 2017
Aqueous SARA ATRP using inorganic sulfites was successfully carried out for the first time.
Carlos M. R. Abreu   +5 more
openaire   +2 more sources

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

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

Controlled surface initiated polymerization of N-isopropylacrylamide from polycaprolactone substrates for regulating cell attachment and detachment [PDF]

open access: yes, 2012
Poly(ε-caprolactone) (PCL) substrates were modified with thermoresponsive poly(N-isopropylacrylamide) (PNIPAM) brushes to direct and control cellular attachment and detachment. Prior to brush growth, the surface of PCL was activated by a diamine to allow
Blitterswijk, C.A. van   +5 more
core   +3 more sources

Exploring Electrochemically Mediated ATRP of Styrene [PDF]

open access: yesProcesses, 2021
Electrochemically mediated atom transfer radical polymerization (eATRP) of styrene was studied in detail by using CuBr2/TPMA (TPMA = tris(2-pyridylmethyl)amine) as a catalyst. Redox properties of various Cu(II) species were investigated in CH3CN, dimethylformamide (DMF), and dimethyl sulfoxide (DMSO) both in the absence and presence of 50% (v/v ...
Francesco De Bon   +3 more
openaire   +2 more sources

ABA triblock copolymers: from controlled synthesis to controlled function [PDF]

open access: yes, 2003
The ABA amphiphilic block copolymers, poly(hydroxyethyl methacrylate-hlock-methylphenylsilane-block-hydroxyethyl methacrylate) (PHEMA-PMPS-PHEMA) and poly[oligo(ethylene glycol) methyl ether methacrylate-block-methylphenylsilane-block-oligo(ethylene ...
Allen   +71 more
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

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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