Preparation, characterization and enhanced performance of functional crosslinked membranes using poly(vinyl alcohol) as macromolecular crosslinker for fuel cells

RSC Advances ◽  
2016 ◽  
Vol 6 (47) ◽  
pp. 41428-41438 ◽  
Author(s):  
Jingmei Xu ◽  
Hongzhe Ni ◽  
Xueyan Luo ◽  
Zhe Wang ◽  
Huixuan Zhang
Keyword(s):  
Fuel Cells ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Cross Linking ◽  
Transmission Channel ◽  
The Cross

The cross-linking structures and introduced PVA effectively blocked the transmission channel of methanol and inhibited the infiltration of methanol.

Acid catalysed cross-linking of poly vinyl alcohol (PVA) by glutaraldehyde: effect of crosslink density on the characteristics of PVA membranes used in single chambered microbial fuel cells

RSC Advances ◽  
2015 ◽  
Vol 5 (101) ◽  
pp. 83436-83447 ◽  
Author(s):  
Ruchira Rudra ◽  
Vikash Kumar ◽  
Patit Paban Kundu
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Vinyl Alcohol ◽  
Crosslink Density ◽  
Poly Vinyl Alcohol ◽  
Cross Linking ◽  
The Cross

In the present study, acid catalysed cross-linking of poly vinyl alcohol (PVA) with varying concentrations of glutaraldehyde was analyzed and the cross-linked PVAs were utilized as membrane separators in single chambered microbial fuel cells (MFCs).

scholarly journals Development of a torrefied wood pellet binder from the cross-linking between specified risk materials-derived peptides and epoxidized poly (vinyl alcohol)

2020 ◽  
Vol 162 ◽  
pp. 71-80
Author(s):  
Tao Shui ◽  
Vinay Khatri ◽  
Michael Chae ◽  
Shahabaddine Sokhansanj ◽  
Phillip Choi ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Cross Linking ◽  
Wood Pellet ◽  
The Cross

scholarly journals Bioprinting Via a Dual-Gel Bioink Based on Poly(Vinyl Alcohol) and Solubilized Extracellular Matrix towards Cartilage Engineering

2021 ◽  
Vol 22 (8) ◽  
pp. 3901
Author(s):  
Mohsen Setayeshmehr ◽  
Shahzad Hafeez ◽  
Clemens van Blitterswijk ◽  
Lorenzo Moroni ◽  
Carlos Mota ◽  
...  
Keyword(s):  
Extracellular Matrix ◽  
Cell Viability ◽  
Vinyl Alcohol ◽  
Compression Modulus ◽  
Synthetic Polymers ◽  
Poly Vinyl Alcohol ◽  
Cross Linking ◽  
Light Curing ◽  
Shape Retention ◽  
Amine Groups

Various hydrogel systems have been developed as biomaterial inks for bioprinting, including natural and synthetic polymers. However, the available biomaterial inks, which allow printability, cell viability, and user-defined customization, remains limited. Incorporation of biological extracellular matrix materials into tunable synthetic polymers can merge the benefits of both systems towards versatile materials for biofabrication. The aim of this study was to develop novel, cell compatible dual-component biomaterial inks and bioinks based on poly(vinyl alcohol) (PVA) and solubilized decellularized cartilage matrix (SDCM) hydrogels that can be utilized for cartilage bioprinting. In a first approach, PVA was modified with amine groups (PVA-A), and mixed with SDCM. The printability of the PVA-A/SDCM formulations cross-linked by genipin was evaluated. On the second approach, the PVA was functionalized with cis-5-norbornene-endo-2,3-dicarboxylic anhydride (PVA-Nb) to allow an ultrafast light-curing thiol-ene cross-linking. Comprehensive experiments were conducted to evaluate the influence of the SDCM ratio in mechanical properties, water uptake, swelling, cell viability, and printability of the PVA-based formulations. The studies performed with the PVA-A/SDCM formulations cross-linked by genipin showed printability, but poor shape retention due to slow cross-linking kinetics. On the other hand, the PVA-Nb/SDCM showed good printability. The results showed that incorporation of SDCM into PVA-Nb reduces the compression modulus, enhance cell viability, and bioprintability and modulate the swelling ratio of the resulted hydrogels. Results indicated that PVA-Nb hydrogels containing SDCM could be considered as versatile bioinks for cartilage bioprinting.

Poly(vinyl alcohol) hollow microcapsules prepared by emulsification, salting out, and photo cross-linking method

2012 ◽  
Vol 29 (8) ◽  
pp. 1108-1113 ◽  
Author(s):  
Mi Sun Lee ◽  
Eun Young Mok ◽  
Won Cheol Shin ◽  
Jong Dai Kim ◽  
Jin-Chul Kim
Keyword(s):  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Cross Linking ◽  
Salting Out
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