A Stydy on the Immobilization of Biomolecules on Poly(acrylic acid)-grafted MWCNTs Prepared by Radiation-Induced Graft Polymerization

Polymer Korea ◽  
2010 ◽  
Vol 34 (2) ◽  
pp. 150-153
Author(s):  
Chan Hee Jung ◽  
Byoung Min Lee ◽  
In Tae Hwang ◽  
Jae Hak Choi ◽  
Young Chang Nho ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Graft Polymerization ◽  
Radiation Induced ◽  
Poly Acrylic Acid

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 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.

Radiation-induced synthesis of poly(acrylic acid) nanogels

2018 ◽  
Vol 142 ◽  
pp. 125-129 ◽  
Author(s):  
Malgorzata Matusiak ◽  
Slawomir Kadlubowski ◽  
Piotr Ulanski
Keyword(s):  
Acrylic Acid ◽  
Radiation Induced ◽  
Poly Acrylic Acid

scholarly journals Radiation-Induced Graft Polymerization of Acrylic Acid onto Poly(3-hydroxybutyrate) and Its Copolymer.

1996 ◽  
Vol 52 (11) ◽  
pp. 623-626 ◽  
Author(s):  
Hiroshi Mitomo ◽  
Tetsuya Sasaoka ◽  
Fumio Yoshii ◽  
Keizo Makuuchi ◽  
Terumi Saito
Keyword(s):  
Acrylic Acid ◽  
Graft Polymerization ◽  
Radiation Induced

scholarly journals Development and Characterization of Cross-Linked Poly(acrylic acid) Hydrogel Containing Drug by Radiation-Based Techniques

2018 ◽  
Author(s):  
Jin-Oh Jeong ◽  
Jae Baik ◽  
Sung-Jun An ◽  
Sung-In Jeong ◽  
Jae-Young Lee ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Cross Linking ◽  
Radiation Doses ◽  
Swelling Ratio ◽  
Chemical Additives ◽  
Drug Delivery Carrier ◽  
Radiation Induced ◽  
Crystalline Nature ◽  
Poly Acrylic Acid

Poly(acrylic acid) (PAAc) hydrogels possess good bioadhesive properties and allow enhanced penetration of drugs. In addition, it is possible to localize the absorption site of the drug in the hydrogel and increase the drug residence time. As opposed to other cross-linking processes radiation-induced polymer cross-linking can be easily and rapidly carried out without the use of cross-linking agents and other chemical additives. In this study, we fabricated metronidazole (MD) containing PAAc hydrogel (MD/PAAc) with different MD contents (0.1, 0.25, 0.5 wt%) using varying radiation doses (25, 50, 75 kGy) by gamma-irradiation. The physical and thermal properties were determined by gel content analysis, swelling ratio measurements, compressive strength measurements, differential scanning calorimetery, and thermogravimetric analysis. The properties of the hydrogel degraded due to the crystalline nature of MD. The properties of the hydrogel degraded due to the crystalline nature of MD. Cumulative release observed after 50 min in the case of 0.5MD/PAAc and 0.1MD/PAAc was 50% and 10%, respectively. Our findings suggest that MD/PAAc could be a suitable drug delivery carrier for use with radiation-based techniques.

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