Role of additive HCL in the radiation-induced grafting copolymerization of acrylic acid and sodium styrene sulfonate to high-density polyethylene

2006 ◽  
Vol 103 (4) ◽  
pp. 2622-2626
Author(s):  
Jianhua Zu ◽  
Zhiqiang Hu ◽  
Ruiqin Liu ◽  
Jianqiu Zhang ◽  
Jianzhong Gu ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
High Density Polyethylene ◽  
High Density ◽  
Styrene Sulfonate ◽  
Sodium Styrene Sulfonate ◽  
Radiation Induced ◽  
Grafting Copolymerization ◽  
Radiation Induced Grafting

scholarly journals Development of Hydrogen-Permselective Porous Membranes Using Radiation-Induced Graft Polymerization

2020 ◽  
Vol 4 (2) ◽  
pp. 23 ◽  
Author(s):  
Shin Hasegawa ◽  
Shinichi Sawada ◽  
Shinya Azami ◽  
Tokio Hagiwara ◽  
Akihiro Hiroki ◽  
...  
Keyword(s):  
Water Vapor ◽  
Acrylic Acid ◽  
Polyvinylidene Fluoride ◽  
Graft Polymerization ◽  
Hydrogen Permeability ◽  
Porous Membranes ◽  
Hot Press ◽  
Radiation Induced ◽  
Permeability For Water ◽  
Radiation Induced Grafting

Hydrogen-permselective membranes were developed using a radiation-induced grafting method. Styrene (St) and acrylic acid (AAc) monomers were introduced into porous polyvinylidene fluoride (PVDF) membranes to obtain St- and AAc-grafted PVDF membranes with grafting degrees of 82% and 92%, respectively. The porosities of the grafted membranes were controlled in the range 30–40% by hot-press compression at 159 °C and 4 MPa. The hydrogen permeability was found to be of the order of 10−7 mol/m2∙s∙Pa, which was higher than the permeability for water vapor and nitrogen (oxygen model). The St- and AAc-grafted membranes exhibited 9.0 and 34 times higher permeability for H2 than for H2O and N2, respectively.

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