scholarly journals Kinetic studies on the thermal decomposition of gamma-irradiated poly(vinyl alcohol (PVA)/methyl cellulose (MC) blends

2015 ◽  
Vol 32 (part 1) ◽  
pp. 270-290 ◽  
Author(s):  
Magdy Senna ◽  
Reham Helal ◽  
Tahia Mostafa ◽  
Abdel Wahab El-Naggar
Keyword(s):  
Thermal Decomposition ◽  
Vinyl Alcohol ◽  
Methyl Cellulose ◽  
Kinetic Studies ◽  
Poly Vinyl Alcohol ◽  
Gamma Irradiated

The investigation of thermal decomposition pathway and products of poly(vinyl alcohol) by TG-FTIR

2015 ◽  
Vol 132 (25) ◽  
pp. n/a-n/a ◽  
Author(s):  
Mohammad Taghi Taghizadeh ◽  
Nazanin Yeganeh ◽  
Mostafa Rezaei
Keyword(s):  
Thermal Decomposition ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Decomposition Pathway

Physical properties of gamma irradiated poly(vinyl alcohol) hydrogel preparations

1999 ◽  
Vol 55 (5-6) ◽  
pp. 723-726 ◽  
Author(s):  
A.V Mondino ◽  
M.E González ◽  
G.R Romero ◽  
E.E Smolko
Keyword(s):  
Physical Properties ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Gamma Irradiated

Characterization and potential applications of gamma irradiated chitosan and its blends with poly(vinyl alcohol)

2014 ◽  
Vol 65 ◽  
pp. 81-88 ◽  
Author(s):  
Ijaz Bano ◽  
Muhammad Afzal Ghauri ◽  
Tariq Yasin ◽  
Qingrong Huang ◽  
Annie D'Souza Palaparthi
Keyword(s):  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Potential Applications ◽  
Gamma Irradiated

Superior physicochemical and biological properties of poly(vinyl alcohol)/sericin hydrogels fabricated by a non-toxic gamma-irradiation technique

2016 ◽  
Vol 32 (1) ◽  
pp. 32-44 ◽  
Author(s):  
Rungnapa Yamdej ◽  
Karnwalee Pangza ◽  
Teerapol Srichana ◽  
Pornanong Aramwit
Keyword(s):  
Gamma Irradiation ◽  
Vinyl Alcohol ◽  
Tensile Modulus ◽  
Biological Properties ◽  
Poly Vinyl Alcohol ◽  
High Elongation ◽  
Physicochemical And Biological Properties ◽  
Migration Assays ◽  
Gamma Irradiated ◽  
High Degree

Gamma irradiation was used to fabricate crosslinked poly(vinyl alcohol)/sericin hydrogels with different sericin concentrations, and the physicochemical and biological properties of the gamma-irradiated poly(vinyl alcohol)/sericin hydrogels were characterized. Following gamma irradiation, the hydrogels had a high gel fraction (80%–95%), implying a high degree of crosslinking. Fourier transform infrared spectra confirmed the crosslinking bonds within the hydrogels, as seen by the characteristic shift in the peak. Furthermore, a low tensile modulus together with a high elongation percentage indicated that the hydrogels were easy to handle. We also showed that all hydrogels released sericin simultaneously. The poly(vinyl alcohol)/sericin hydrogels with high sericin content released more sericin, possibly due to less crosslinking of the hydrogels. When L929 cells were cultured with the hydrogel extracts, the cells were viable and could proliferate, particularly for the cells cultured with the hydrogels containing a high sericin content, which released more sericin. Migration assays also demonstrated that the cells migrated toward the medium extract of hydrogels containing high sericin. We suggest that sterile gamma-irradiated poly(vinyl alcohol)/sericin hydrogels could be used as a wound dressing for the treatment of dry and low-exudate wounds.

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