scholarly journals Structure and molecular orientation of high strength poly(vinyl alcohol) fibers prepared by cross-linking/wet spinning.

1991 ◽  
Vol 47 (1) ◽  
pp. 5-10 ◽  
Author(s):  
Tadayoshi Hayasaki ◽  
Mitsuhiro Shibayama ◽  
Shinichi Sakurai ◽  
Shunji Nomura ◽  
Hiroshi Fujiwara ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Molecular Orientation ◽  
High Strength ◽  
Wet Spinning ◽  
Poly Vinyl Alcohol ◽  
Cross Linking

scholarly journals STRUCTURE AND PROPERTIES OF HIGH STRENGTH POLY (VINYL ALCOHOL) FIBERS PREPARED BY CROSS-LINKING/WET SPINNING

1990 ◽  
Vol 46 (1) ◽  
pp. 15-20 ◽  
Author(s):  
Mitsuhiro Shibayama ◽  
Tadayoshi Hayasaki ◽  
Jing Hui Chen ◽  
Shunji Nomura ◽  
Hiroshi Fujiwara
Keyword(s):  
Vinyl Alcohol ◽  
High Strength ◽  
Wet Spinning ◽  
Poly Vinyl Alcohol ◽  
Cross Linking ◽  
Structure And Properties

Preparation of high-strength poly(vinyl alcohol) fibers by crosslinking wet spinning

1989 ◽  
Vol 37 (5) ◽  
pp. 1403-1414 ◽  
Author(s):  
Hiroshi Fujiwara ◽  
Mitsuhiro Shibayama ◽  
Jing Hui Chen ◽  
Shunji Nomura
Keyword(s):  
Vinyl Alcohol ◽  
High Strength ◽  
Wet Spinning ◽  
Poly Vinyl Alcohol

Bio-inspired natural polyphenol cross-linking poly(vinyl alcohol) films with strong integrated strength and toughness

RSC Advances ◽  
2016 ◽  
Vol 6 (74) ◽  
pp. 69966-69972 ◽  
Author(s):  
Yu Guan ◽  
Leishan Shao ◽  
Dongyu Dong ◽  
Fei Wang ◽  
Yuliang Zhang ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Vinyl Alcohol ◽  
Spider Silk ◽  
High Strength ◽  
Poly Vinyl Alcohol ◽  
Cross Linking ◽  
Hydrogen Bonding Interactions ◽  
Natural Polyphenol ◽  
Strength And Toughness

Bio-inspired by spider silk, we simultaneously integrated high strength and toughness to PVA/TA films via extensive hydrogen bonding interactions.

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

Fiber Orientation Control by Stretching in Cellulose Nanofiber Green Composites

2017 ◽  
Vol 754 ◽  
pp. 135-138
Author(s):  
Hitoshi Takagi ◽  
Antonio Norio Nakagaito ◽  
Yuya Sakaguchi
Keyword(s):  
Fiber Orientation ◽  
Vinyl Alcohol ◽  
Glass Fibers ◽  
Cellulose Nanofibers ◽  
Polymeric Composite ◽  
High Strength ◽  
Sample Surface ◽  
Cellulose Nanofiber ◽  
Poly Vinyl Alcohol ◽  
Nanofiber Alignment

The presence of nanoscale cellulosic fiber; namely cellulose nanofiber, increases year by year because the mechanical and physical properties are believed to be comparable to those of common glass fibers. On the other hand, most of the reported strength data for the cellulose nanofiber-reinforced polymeric composite materials was not as high as expected. In order to obtain high-strength cellulose nanofiber-reinforced polymer composites, we tried to optimize the fiber orientation of cellulose nanofibers in poly (vinyl alcohol)-based polymer matrix by using a repeated mechanical stretching treatment. The fiber orientation of cellulose nanofibers in the poly (vinyl alcohol) matrix can be modified by changing the total amount of stretching strain applied during the multiple stretching treatments. The degree of fiber alignment was directly evaluated by observing the cellulose nanofibers on the sample surface with a digital microscope. The efficacy of proposed nanofiber alignment control has been explored experimentally and theoretically. The tensile strength and modulus of the cellulosic nanocomposites after applying the multiple stretching treatments increased by approximately 80% and 40% respectively, as compared with those of the untreated nanocomposites.

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