scholarly journals Preparation and characterization of aqueous polyurethane oil/polyacrylate latex interpenetrating polymer network

2015 ◽  
Vol 87 ◽  
pp. 012045
Author(s):  
M M Zhou ◽  
L L Ma ◽  
J Du ◽  
F Cao ◽  
J J Xiao
Keyword(s):  
Polymer Network ◽  
Interpenetrating Polymer Network

Synthesis and characterization of a novel wound dressing by PVP/ PAANa/chitosan with semi-interpenetrating polymer network structure

e-Polymers ◽  
2012 ◽  
Vol 12 (1) ◽  
Author(s):  
Ying Wu ◽  
Qing Yang ◽  
Yali Gi ◽  
Yueting Zhang
Keyword(s):  
Network Structure ◽  
Wound Dressing ◽  
Polymer Network ◽  
Interpenetrating Polymer Network ◽  
Wound Dressings ◽  
Synthesis And Characterization ◽  
Cross Linking ◽  
Mass Ratio ◽  
Scanning Electron

AbstractA novel hydrogel wound dressing with semi-interpenetrating polymer network structure (semi-IPN) was prepared by radical polymerization of acrylic acid with potassium persulfate (K2S2O8) as initiator and N, N'-methylenebisacrylamide (MBA) as cross-linking agent in the presence of chitosan (CTS) and polyvinyl pyrrolidone (PVP). Hydrogels were characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). SEM displayed semi- IPN hydrogels' creased surface with some scale-like wrinkles, thus improving the absorptive capability which has been considered as a most important characteristic of wound dressings. It was found that the content of cross-linking agent and the mass ratio of PVP and CTS had much influence on the mechanical properties of the hydrogel, varying from brittle plastics to elastomer due to the different degrees of cross linking. Since tensile strength is partly in inverse ratio to the hydrogel absorbent capability, the article offers an analysis of varying material proportion in order to obtain an optimum properties of the hydrogel wound dressing .

Sorption characterization of poly(vinyl alcohol)/chitosan interpenetrating polymer network hydrogels

2003 ◽  
Vol 90 (1) ◽  
pp. 86-90 ◽  
Author(s):  
Seon Jeong Kim ◽  
Ki Jung Lee ◽  
Sun I. Kim ◽  
Kyu Back Lee ◽  
Yong Doo Park
Keyword(s):  
Vinyl Alcohol ◽  
Polymer Network ◽  
Interpenetrating Polymer Network ◽  
Poly Vinyl Alcohol
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