Results 31 to 40 of about 751,445 (279)

Engineering of Syndiotactic and Isotactic Polystyrene-Based Copolymers via Stereoselective Catalytic Polymerization

open access: yesMolecules, 2017
This contribution presents an updated overview of the different copolymers containing stereoregular polystyrene blocks. Special emphasis is placed on syndiospecific and isospecific copolymerization of styrene with co-monomers (ethylene and α-olefins ...
Eva Laur   +2 more
doaj   +1 more source

Improvement in Physical Properties of MMA Grafted Coir Fibres

open access: yesCORD, 2015
This work deals with the surface modification of Coir fibre through graft copolymerization process. Graft copolymerization of methyl methacrylate (MMA) onto coir fibre was carried out with Potassium per sulphate (PPS) as an initiator under the catalytic ...
Lakshmi N. S.   +3 more
doaj   +1 more source

Graft copolymerization of methacrylic acid monomers onto polypropylene fibers [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2014
In recent years, graft copolymerization has been widely used to insert various functional groups onto polymers. In our study, methacrylic acid monomers are grafted to polypropylene (PP) fibers to make them hydrophilic while maintaining their ...
Mazhar Majid   +3 more
doaj   +1 more source

Injectable polypeptide hydrogels via methionine modification for neural stem cell delivery. [PDF]

open access: yes, 2018
Injectable hydrogels with tunable physiochemical and biological properties are potential tools for improving neural stem/progenitor cell (NSPC) transplantation to treat central nervous system (CNS) injury and disease.
Czechanski, A   +6 more
core   +1 more source

Recent advances in photocatalytic hydrogen peroxide production

open access: yesPhotoMat, EarlyView., 2023
We classify the representative photocatalytic materials for photosynthesis of hydrogen peroxide (H2O2) in recent years and discuss the related modification methods in detail, providing inspiration and insights for the future design of photocatalysts for H2O2 production.
Jinyu Yan   +4 more
wiley   +1 more source

Ammonium persulfate-initiated graft copolymerization of methacrylamide onto chitosan: synthesis, characterization and optimization

open access: yes, 2017
Ammonium persulfate (APS)-initiated grafting of methacrylamide (MAM) onto chitosan was successfully prepared for the first time by free radical mechanism.
Zetty Azalea Sutirman   +4 more
semanticscholar   +1 more source

Modification of Vietnam Natural Rubber via Graft Copolymerization with Styrene

open access: yes, 2016
Graft copolymerization of styrene onto deproteinized natural rubber (DPNR) using tert-butyl hydroperoxide (TBHPO) and tetraethylene pentamine (TEPA) as redox initiator have been investigated.
Tran Anh Dung   +7 more
semanticscholar   +1 more source

Effect of Silica Fillers on Characterization of Cellulose-Acrylamide Hydrogels Matrices as Controlled Release Agents for Urea Fertilizers

open access: yesIndonesian Journal of Chemistry, 2014
Controlled Release Urea Fertilizers-based hydrogels matrices was synthesized by graft copolymerization of acrylamide onto the rice straw cellulose backbones in the presence of silica fillers using simultaneous graft copolymerization by gamma irradiation ...
Deni Swantomo   +3 more
doaj   +1 more source

TGA/FTIR: An Extremely Useful Technique for Studying Polymer Degradation [PDF]

open access: yes, 1999
Thermogravimetric analysis coupled to Fourier transform infrared spectroscopy, TGA/FTIR, has been used to probe the degradation of several polymeric systems.
Wilkie, Charles A.
core   +1 more source

Bio‐Friendly Artificial Muscles Based on Carbon Nanotube Yarns and Eutectogel Derivatives

open access: yesAdvanced Functional Materials, EarlyView.
Solid‐state artificial muscles based on coiled commercial carbon nanotube yarns coated with eutectogel derivatives exhibit unipolar actuation through selective ion intercalation. Combining polyanionic and polycationic gels enables enhanced contractile stroke and high energy density.
Gabriela Ananieva   +6 more
wiley   +1 more source

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