Characterization of Electron Beam Irradiated Polyvinylpyrrolidone-Dextran (PVP/DEX) Blends

2012 ◽  
Vol 188 ◽  
pp. 102-108 ◽  
Author(s):  
Maria Dumitraşcu ◽  
Mădălina Georgiana Albu ◽  
Marian Vîrgolici ◽  
Cătălin Vancea ◽  
Viorica Meltzer

In the past years an increased interest to create new polymeric blends with application in the medical area for development of new types of biomaterials has appeared. Electron beam irradiation is well known as a method of producing important changes in polymer structure, being an alternative to chemical synthesis of biomaterials based on polymeric materials. The aim of the present study was to investigate the behaviour of some polyvinylpyrrolidone-dextran (PVP/DEX) blends under electron beam irradiation. Aqueous solutions of PVP with molecular weights of 360 000 Da (PVP 360), 40 000 Da (PVP 40), and DEX with molecular weight of 500 000 Da (DEX), were mixed as to obtain 50:50 blends of PVP40/DEX and PVP360/DEX. The obtained blends were irradiated with electron beam at different radiation doses and after irradiation treatment were processed by freeze-drying. PVP/DEX blends were characterized by infrared spectroscopy (FT-IR) and thermal analysis. The analyses were conducted in order to establish the relation between radiation dose and changes of structural and thermal properties.

2017 ◽  
Vol 135 ◽  
pp. 127-132 ◽  
Author(s):  
Hong Gun Kim ◽  
Mira Park ◽  
Hak-Yong Kim ◽  
Lee Ku Kwac ◽  
Hye Kyoung Shin

2017 ◽  
Vol 229 ◽  
pp. 45-50 ◽  
Author(s):  
Triinu Taaber ◽  
Mikk Antsov ◽  
Sergei Vlassov ◽  
Uno Mäeorg ◽  
Leonid Dorogin ◽  
...  

2019 ◽  
Vol 43 (35) ◽  
pp. 13764-13774 ◽  
Author(s):  
Renrui Sun ◽  
Jing Wang ◽  
Tianli Yang ◽  
Ren He ◽  
Kehui Xue ◽  
...  

Ag/Bi2WO6/CdWO4 ternary heterostructure materials treated by electron beam irradiation are used for the highly efficient degradation of inorganic and organic pollutants.


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