Results 21 to 30 of about 295,597 (297)

Improvement of Thermal and Mechanical Properties of Vietnam Deproteinized Natural Rubber via Graft Copolymerization with Methyl Methacrylate

open access: yesInternational Journal of Polymer Science, 2020
In this study, we investigated the improvement of the thermal and mechanical properties of Vietnam deproteinized natural rubber (DPNR) via graft copolymerization of methyl methacrylate (MMA).
Thi Nhan Nguyen   +8 more
doaj   +1 more source

Effect of block copolymer nano-reinforcements on the low velocity impact response of sandwich structures [PDF]

open access: yes, 2014
Sandwich composites with fibre reinforced plastic (FRP) facesheets have emerged as a major class of lightweight structural materials in a wide range of engineering fields including aerospace, automotive and marine structures.
GUÉRARD, Sandra   +3 more
core   +1 more source

Novel material for nickel recuperation

open access: yesMaterials Research, 2001
Graft polymerization of N-vinyl-2-pyrrolidone with chitin was studied using hydrogen peroxide for initiation. The capacity of the obtained VP-g-Ch graft copolymer for adsorption of nickel was examined.
José A. da Rocha Filho   +3 more
doaj   +1 more source

Chitosan-Graft-Polyacrylamide Based Release Systems: Effect of pH and Crosslinking

open access: yesJournal of the Turkish Chemical Society, Section A: Chemistry, 2022
This study covers the synthesis and release behavior of chitosan-graft-polyacrylamide copolymers in aqueous media at different pH values. The copolymers were synthesized using redox polymerization with ceric ammonium nitrate (CAN) in 1% aqueous acetic ...
Ahmet KÜÇÜKÇALIK, Cüneyt H. ÜNLÜ
doaj   +1 more source

Synthesis and optimization of polyacrylamide and gum arabic graft copolymer [PDF]

open access: yes, 2012
Graft copolymerization of polyacrylamide onto gum arabic was carried out in aqueous medium at room temperature (30oC) using various initiator (ceric ion) and monomer (acrylamide) concentrations.
Aliyu, BA   +3 more
core   +1 more source

Controllable Synthesis of Submicrometer Core–Shell Modifier and Its Effect on Toughening Polypheylene Ether/Polystyrene Blends

open access: yesMacromolecular Materials and Engineering, 2023
Core–shell polybutadiene‐graft‐polystyrene (PB‐g‐PS) graft copolymers with different ratios of PB to PS are synthesized by emulsion polymerization. Further, the PB‐g‐PS copolymers are blended with polypheylene ether (PPE) and PS to prepare PPE/PS/PB‐g‐PS
Lixin Song   +7 more
doaj   +1 more source

Cationically functionalized dextrin polymer as an efficient flocculant for harvesting microalgae

open access: yesEnergy Reports, 2020
The present study sets out to the development of cationic graft copolymer, dextrin -g-PMETAC through grafting of 2-methacryloyloxyethyl trimethyl ammonium chloride (METAC) on to the dextrin polymer.
Niwas Kumar   +2 more
doaj   +1 more source

Utilization of Poly(Acrylic Acid)/Cellulose Graft Copolymer for Dye and Heavy Metal Removal

open access: yesBioResources, 2015
A cellulosic component was extracted from low-value palm tree wastes, empty fruit bunches, and functionalized through grafting with acrylic acid in a previous study.
Essam S. Abdel-Halim   +1 more
doaj   +1 more source

Dynamic Mechanical Properties of Vietnam Modified Natural Rubber via Grafting with Styrene

open access: yesInternational Journal of Polymer Science, 2017
The dynamic mechanical behavior of modified deproteinized natural rubber (DPNR) prepared by graft copolymerization with various styrene contents was investigated at a wide range of temperatures.
T. A. Dung   +7 more
doaj   +1 more source

Estudio de copolimerización injerto del acrilato de butilo sobre almidón empleando sistema iniciador redox

open access: yesQuímica Nova, 2014
The mixture of synthetic and natural materials yields a material with improved physical-chemical properties. One way of obtaining this kind of material is through graft copolymerization.
Alfredo Carlos Martinez-Arellano   +5 more
doaj   +1 more source

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