نتایج جستجو برای: grafted copolymer

تعداد نتایج: 22029  

Journal: :International Journal of Technology: IJ Tech 2022

Xanthan gum modification is considered a significant step in improving shearing, thermal degradation performance, and rheological properties. This paper investigates the rheology properties of grafted copolymer based on xanthan methyl methacrylate (XG-g-MMA), including shear stress viscosity versus rate. The XG-g-MMA was synthesized with different composition ratios (MMA) (1:1.6, 1:5, 1:8 wt.%)...

2010
Hao Feng Jian Li Lijuan Wang

Superabsorbent polymer was prepared by graft polymerization of acrylic acid onto the chain of cellulose from flax shive by using potassium persulfate (KPS) as an initiator and N,N-methylenebisacrylamide (MBA) as a crosslinker under microwave irradiation. SEM photographs were also studied for more information about the shive, cellulose from shive, and the superabsorbent polymer. The structure of...

2017
Jae Won Lee Hye Jin Cho Jinsung Chun Kyeong Nam Kim Seongsu Kim Chang Won Ahn Ill Won Kim Ju-Young Kim Sang-Woo Kim Changduk Yang Jeong Min Baik

A robust nanogenerator based on poly(tert-butyl acrylate) (PtBA)-grafted polyvinylidene difluoride (PVDF) copolymers via dielectric constant control through an atom-transfer radical polymerization technique, which can markedly increase the output power, is demonstrated. The copolymer is mainly composed of α phases with enhanced dipole moments due to the π-bonding and polar characteristics of th...

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