نتایج جستجو برای: in situ polymerization

تعداد نتایج: 16987258  

Journal: :Coatings 2021

“In situ” polymerization method was used to develop PANI-PSSA /textile. Polyaniline doped with polystyrene sulfonic acid (PANI-PSSA) as coatings for textiles were obtained by aqueous and emulsion route. The route uses chloroform solvent. Polymerization has been achieved in one step on the wool or polyamide textiles. For coated uncoated textiles, dried at room temperature, characterized structur...

Journal: :Polymers 2023

Hybrid latex particles combine the unique properties of inorganic nano/micro with inherent polymers, exhibiting tremendous potential for a variety applications. Recent years have witnessed an increased interest in design and preparation hybrid well-defined size, structure morphology. Due to its simplicity, versatility environmental friendliness, situ (Pickering) emulsion polymerization has been...

Journal: :Chemical communications 2016
Alison R Schultz Gregory B Fahs Chainika Jangu Mingtao Chen Robert B Moore Timothy E Long

Living anionic polymerization of 4-diphenylphosphino styrene (DPPS) achieved well-defined homopolymers, poly(DPPS-b-S) styrenic block copolymers, and poly(I-b-DPPS) diene-based diblock copolymers with predictable molecular weights and narrow polydispersities. In situ FTIR spectroscopy monitored the anionic polymerization of DPPS and tracked monomer consumption for kinetic analysis. Post-alkylat...

2015
Yusuf Yagci Mehmet Atilla Tasdelen Baris Kiskan Mustafa Çiftci Sajjad Dadashi-Silab Omer Suat Taskin Gorkem Yilmaz

Visible light-induced atom transfer radical polymerization (ATRP) of vinyl monomers are examined by using various photocatalysts systems including Type I and Type II photoinitiators, dyes, dimanganese decacarbonyl and semiconducting photocatalysts. The influence of various experimental parameters on the polymerization such as type of light sources and photocatalyts, and concentration of metal c...

Journal: :علوم و تکنولوژی پلیمر 0
محمد نجفی حسین روغنی ممقانی مهدی سلامی کلجاهی وحید حدادی اصل

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 weight distribution were evaluated as the reaction proceeded. according to the results obtained, for similar reaction time, monomer conversion is h...

Journal: :Journal of the American Chemical Society 2003
Gunaranjan Viswanathan Nirupama Chakrapani Hoichang Yang Bingqing Wei Hyunsoo Chung Kilwon Cho Chang Y Ryu Pulickel M Ajayan

An in situ composite synthesis technique has been developed by grafting polystyrene chains onto single-wall carbon nanotubes (SWNTs) via a single-step debundling/polymerization scheme. The method, based on established anionic polymerization techniques, eliminates the need for nanotube pretreatment prior to functionalization and allows attachment of polymer molecules to pristine tubes without al...

2012
Sangbeom Hwang Simon Song

We propose a non-equilibrium electrokinetic (EK) mixer with a nanoporous membrane fabricated on a microfluidic chip by laser polymerization technique. A non-equilibrium EK mixer had an array of nanochannels to generate a vortex using ion depletion and consequent electroconvection [1]. The nanochannels, however, require expensive and complicated fabrication processes. On the other hand, the lase...

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