Some investigations and characterization of radiation-initiated graft polymerization onto fluorinated copolymer

Silica gel particle was chemically modified by using 3-methacryloxypropyl trimethoxysilane (KH-570) as coupling agent. Then poly methyl acrylic acid (PMAA) was grafted on the surface of particles MPS-SiO2 with the method of Emulsion Polymerization, and grafting particles PMMA/SiO2 were prepared. The grafting particle PMAA/SiO2 was characterized by using FT-IR, TG and SEM. The experimental results show that the graft polymerization of methyl acrylic acid (MAA) on onto the surface of silica gel particles can successfully realized using the method of “graft from”. During the graft polymerization, the grafted polymer layer is a hindrance to the subsequent graft polymerization. When the grafted polymer layer reach to a certain density via overlapping and entwisting, a kinetic barrier will be built up. Hence, the grafting degree of the polymer under a certain condition has a limiting value.

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Synthesis and Characterization of Cellulose-graft-poly(p-dioxanone) Copolymers via Homogeneous Ring-Opening Graft Polymerization in Ionic Liquids

BioResources ◽

10.15376/biores.11.1.2698-2711 ◽

2016 ◽

Vol 11 (1) ◽

Cited By ~ 4

Author(s):

Li Zhang ◽

Yanzhu Guo ◽

Jinghui Zhou ◽

Guangwei Sun ◽

Ying Han ◽

...

Keyword(s):

Ionic Liquids ◽

Ring Opening ◽

Graft Polymerization ◽

Synthesis And Characterization

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Electrochemical characterization of phosphonic acid cation exchange membrane prepared by plasma-induced graft polymerization

Korean Journal of Chemical Engineering ◽

10.1007/s11814-008-0189-9 ◽

2008 ◽

Vol 25 (5) ◽

pp. 1151-1153 ◽

Cited By ~ 1

Author(s):

Eun-Young Choi ◽

Seung-Hyeon Moon

Keyword(s):

Cation Exchange ◽

Phosphonic Acid ◽

Graft Polymerization ◽

Electrochemical Characterization ◽

Cation Exchange Membrane ◽

Acid Cation ◽

Exchange Membrane

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Characterization of graft polymerization of fluoroalkyl methacrylate onto PDMS hollow-fiber membranes and their permselectivity for volatile organic compounds

Journal of Applied Polymer Science ◽

10.1002/app.11785 ◽

2003 ◽

Vol 88 (6) ◽

pp. 1573-1580 ◽

Cited By ~ 5

Author(s):

S. Mishima ◽

T. Nakagawa

Keyword(s):

Volatile Organic Compounds ◽

Organic Compounds ◽

Hollow Fiber ◽

Graft Polymerization ◽

Hollow Fiber Membranes ◽

Volatile Organic ◽

Fiber Membranes

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Synthesis and characterization of composite polysulfone membranes for desalination in nanofiltration technique

Water Science & Technology ◽

10.2166/wst.2010.512 ◽

2010 ◽

Vol 62 (11) ◽

pp. 2655-2663 ◽

Cited By ~ 11

Author(s):

A. Akbari ◽

M. Homayonfal ◽

V. Jabbari

Keyword(s):

Acrylic Acid ◽

Polyacrylic Acid ◽

Graft Polymerization ◽

Irradiation Time ◽

Polymerization Process ◽

Synthesis And Characterization ◽

Porous Support ◽

Ft Ir

Composite nanofiltration (NF) membrane was developed polyacrylic acid (PAA) in situ UV graft polymerization process using ultrafiltration (UF) polysulfone (PSF) membrane as porous support. FT-IR spectra indicated that grafting was performed and it show peaks at 1,732 cm−1 and 3,396 cm−1 region for CO and OH starching bond of acrylic acid (AA) monomer, respectively. AFM microscopy showed the roughness of surface was reduced by increase of UV irradiation times. Effect of irradiation time on the grafting of acrylic acid (AA) in the same concentration was discussed. The salts rejection increase was accompanied with grafting of polysulfone (PSF) ultrafiltration (UF) membrane. The rejection of Na2SO4, MgSO4, NaCl and CaCl2 salts by PSF-grafted-PAA nanofiltration (NF) membrane was in 98, 60, 52 and 30% respectively, under 0.3 MPa.

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