scholarly journals Performance analysis of carbon electrode synthesized with poly (vinyl alcohol) and citric acid as cross-linking agent for desalination of NaCl solution in capacitive deionization

2017 ◽  
Author(s):  
Boby Willem Nulik ◽  
Endarko
Keyword(s):  
Citric Acid ◽  
Performance Analysis ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Cross Linking ◽  
Carbon Electrode ◽  
Capacitive Deionization ◽  
Nacl Solution

scholarly journals ACID CITRIC CROSS –LINKING OF STARCH/ POLY(VINYL ALCOHOL) BLEND

2011 ◽  
Vol 14 (4) ◽  
pp. 57-66
Author(s):  
Nguyen Thao Tran ◽  
Diem Thi Tuyet Nguyen ◽  
Tai Tan Dang
Keyword(s):  
Mechanical Properties ◽  
Citric Acid ◽  
Water Absorption ◽  
Vinyl Alcohol ◽  
Hydrophilic Polymers ◽  
Poly Vinyl Alcohol ◽  
Cross Linking ◽  
Biodegradable Materials ◽  
Starch Films

In recent times, a number of studies worldwide have focused on strengthening the interaction between the TPS and PVA or modifying with several agents to achieve better mechanical properties, in order to apply in the manufacturing of biodegradable materials. In addition, since both starch and PVA are hydrophilic polymers, they have very strong water absorption ability. In this research, the possibility of cross-linking starch films using citric acid to improve their strength and stability was examined. The study also showed the prospect to limit water absorption of the blend when solubility of the mixture can be reduced to 40%.

Branched/Hyperbranched Copolyesters from Poly(vinyl alcohol) and Citric Acid as Delivery Agents and Tissue Regeneration Scaffolds

2021 ◽  
pp. 2100134
Author(s):  
Srijoni Sengupta ◽  
Abhishek Singh ◽  
Koushik Dutta ◽  
Ram Prasad Sahu ◽  
Satish Kumar ◽  
...  
Keyword(s):  
Citric Acid ◽  
Tissue Regeneration ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol

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

Poly(vinyl alcohol)/CNT composites: An effect of cross-linking with glutaraldehyde

2009 ◽  
Vol 46 (1-2) ◽  
pp. 379-383 ◽  
Author(s):  
Elena V. Basiuk ◽  
Arfat Anis ◽  
Sri Bandyopadhyay ◽  
Edgar Alvarez-Zauco ◽  
Sammy L.I. Chan ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Cross Linking

scholarly journals Preparation of Citric Acid Crosslinked Chitosan/Poly(Vinyl Alcohol) Blend Membranes for Creatinine Transport

2018 ◽  
Vol 16 (2) ◽  
pp. 144 ◽  
Author(s):  
Retno Ariadi Lusiana ◽  
Dwi Siswanta ◽  
Mudasir Mudasir
Keyword(s):  
Citric Acid ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Crosslinking Reaction ◽  
Transport Capacity ◽  
Chitosan Membrane ◽  
Group Modification ◽  
Crosslinked Chitosan ◽  
Pass Through ◽  
Functional Group Modification

Preparation of membrane using crosslinking reaction between chitosan and citric acid showed that functional group modification increased the number of active carrier groups which lead to better transport capacity of the membrane. In addition, the substitution of the carboxyl group increased creatinine permeation of chitosan membrane. The transport capacity of citric acid crosslinked chitosan membrane for creatinine was found to be 6.3 mg/L. The presence of cyanocobalamin slightly hindered the transport of creatinine although compounds did not able to pass through citric acid crosslinked chitosan/poly(vinyl alcohol) blend membrane, as compounds no found in the acceptor phase.

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