Surface modification of PVDF membrane by radiation-induced graft polymerization for novel membrane bioreactor

2017 ◽  
Vol 46 ◽  
pp. 103-110 ◽  
Author(s):  
In Hwan Shin ◽  
Seungkwan Hong ◽  
Seung Joo Lim ◽  
Youn-Suk Son ◽  
Tak-Hyun Kim
Keyword(s):  
Surface Modification ◽  
Membrane Bioreactor ◽  
Graft Polymerization ◽  
Pvdf Membrane ◽  
Radiation Induced

Surface modification of poly(3-hydroxybutyrate- co -3-hydroxyvalerate) by direct plasma-radiation-induced graft polymerization of N-hydroxyethyl-acrylamide

2016 ◽  
Vol 175 ◽  
pp. 252-257 ◽  
Author(s):  
Maykel González-Torres ◽  
Susana Vargas-Muñoz ◽  
Alicia del Real ◽  
Álvaro de Jesús Ruíz-Baltazar ◽  
Eric Reyes-Cervantes ◽  
...  
Keyword(s):  
Surface Modification ◽  
Graft Polymerization ◽  
Plasma Radiation ◽  
Radiation Induced

scholarly journals Radiation-Induced Asymmetric Grafting of Different Monomers into Base Films to Prepare Novel Bipolar Membranes

Molecules ◽  
2021 ◽  
Vol 26 (7) ◽  
pp. 2028
Author(s):  
Shin-ichi Sawada ◽  
Yasunari Maekawa
Keyword(s):  
Acrylic Acid ◽  
Anion Exchange ◽  
Graft Polymerization ◽  
The Other ◽  
Practical Applications ◽  
Bipolar Membranes ◽  
Graft Polymers ◽  
Grafting Reactions ◽  
Radiation Induced

We prepared novel bipolar membranes (BPMs) consisting of cation and anion exchange layers (CEL and AEL) using radiation-induced asymmetric graft polymerization (RIAGP). In this technique, graft polymers containing cation and anion exchange groups were introduced into a base film from each side. To create a clear CEL/AEL boundary, grafting reactions were performed from each surface side using two graft monomer solutions, which are immiscible in each other. Sodium p-styrenesulfonate (SSS) and acrylic acid (AA) in water were co-grafted from one side of the base ethylene-co-tetrafluoroethylene film, and chloromethyl styrene (CMS) in xylene was simultaneously grafted from the other side, and then the CMS units were quaternized to afford a BPM. The distinct SSS + AA- and CMS-grafted layers were formed owing to the immiscibility of hydrophilic SSS + AA and hydrophobic CMS monomer solutions. This is the first BPM with a clear CEL/AEL boundary prepared by RIAGP. However, in this BPM, the CEL was considerably thinner than the AEL, which may be a problem in practical applications. Then, by using different starting times of the first SSS+AA and second CMS grafting reactions, the CEL and AEL thicknesses was found to be controlled in RIAGP.

scholarly journals Radiation-Induced Graft Polymerization of Acrylonitrile onto Poly(vinyl chbride) Film

1973 ◽  
pp. 1188-1194
Author(s):  
Shoji HASHIMOTO ◽  
Akira UDAGAWA ◽  
Eiichi KAGEYAMA
Keyword(s):  
Graft Polymerization ◽  
Radiation Induced
Sign in / Sign up

Export Citation Format

Share Document