Poly(vinyl alcohol)film formation process using single-sided low-field NMR relaxometry: effect of initial concentration

2013 ◽  
Vol 178 ◽  
pp. 27-30 ◽  
Author(s):  
Carlos Mattea ◽  
Sushanta Ghoshal ◽  
Ewelina Pabjańczyk ◽  
Siegfried Stapf
Keyword(s):  
Formation Process ◽  
Vinyl Alcohol ◽  
Film Formation ◽  
Poly Vinyl Alcohol ◽  
Initial Concentration ◽  
Low Field ◽  
Nmr Relaxometry ◽  
Low Field Nmr

scholarly journals Structure of Poly(vinyl alcohol) Cryo-Hydrogels as Studied by Proton Low-Field NMR Spectroscopy

2009 ◽  
Vol 42 (1) ◽  
pp. 263-272 ◽  
Author(s):  
J. L. Valentín ◽  
D. López ◽  
R. Hernández ◽  
C. Mijangos ◽  
K. Saalwächter
Keyword(s):  
Nmr Spectroscopy ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Low Field ◽  
Low Field Nmr

Network Structure of Swollen Iodine-Doped Poly (Vinyl Alcohol) Amorphous Domain as Characterized by Low Field NMR

Soft Matter ◽  
2021 ◽  
Author(s):  
Yahui Li ◽  
Junsheng Yang ◽  
Hong Cheng ◽  
Linkun Cai ◽  
Ke Ye ◽  
...  
Keyword(s):  
Complex Formation ◽  
Network Structure ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Low Field ◽  
Iodine Complex ◽  
Amorphous Domain ◽  
Nmr Techniques ◽  
Low Field Nmr ◽  
Lf Nmr

The network structure in the amorphous domain of swollen iodine-doped poly (vinyl alcohol) (PVA) were systematically investigated by low-field (LF) NMR techniques to reveal the PVA-iodine complex formation mechanism. Three...

Dynamics of ionic liquids in poly(vinyl alcohol) porous scaffold. Low field NMR study

2019 ◽  
Vol 56 ◽  
pp. 126-130 ◽  
Author(s):  
Carlos Mattea ◽  
Bulat Gizatullin ◽  
Siegfried Stapf
Keyword(s):  
Ionic Liquids ◽  
Vinyl Alcohol ◽  
Porous Scaffold ◽  
Poly Vinyl Alcohol ◽  
Low Field ◽  
Nmr Study ◽  
Low Field Nmr

Biodegradable Flax Fiber Reinforced Eco-Composites

2014 ◽  
Vol 604 ◽  
pp. 180-183
Author(s):  
Velta Tupureina ◽  
Anda Dzene ◽  
Marcis Dzenis
Keyword(s):  
Formation Process ◽  
Vinyl Alcohol ◽  
Mechanical Characteristics ◽  
Flax Fiber ◽  
Matrix Composition ◽  
Poly Vinyl Alcohol ◽  
Fiber Reinforced ◽  
Casting Technique ◽  
Modified Polymers ◽  
Water Vapour Absorption

Formation process of flax fiber reinforced biocomposites based on waterborne matrix systems from modified polymers - polyhydroxybutyrate, poly (vinyl alcohol) was developed by suspension casting technique. Two kind of flax fiber as reinforcement was employed Latvian variety Vega-2 and flax combing. The correlation between matrix composition, fiber origin, content and mechanical characteristics, water vapour absorption and biodegradability was established. Optimal characteristics of elaborated eco-composites were obtained by use of flax combing with fiber content ~ 30 wt. %.

Capillary Trapping of CO 2 in Sandstone Using Low Field NMR Relaxometry

2019 ◽  
Vol 55 (12) ◽  
pp. 10466-10478 ◽  
Author(s):  
Paul R. J. Connolly ◽  
Sarah J. Vogt ◽  
Mohamed Mahmoud ◽  
Christopher N. Y. Ng ◽  
Eric F. May ◽  
...  
Keyword(s):  
Capillary Trapping ◽  
Low Field ◽  
Nmr Relaxometry ◽  
Low Field Nmr

In-situ heavy oil viscosity prediction at high temperatures using low-field NMR relaxometry and nonlinear least squares

Fuel ◽  
2020 ◽  
Vol 260 ◽  
pp. 116328 ◽  
Author(s):  
Strahinja Markovic ◽  
Jonathan L. Bryan ◽  
Aman Turakhanov ◽  
Alexey Cheremisin ◽  
Sudarshan A. Mehta ◽  
...  
Keyword(s):  
Least Squares ◽  
High Temperatures ◽  
Heavy Oil ◽  
Nonlinear Least Squares ◽  
Oil Viscosity ◽  
Low Field ◽  
Nmr Relaxometry ◽  
Viscosity Prediction ◽  
Low Field Nmr

scholarly journals Qualification of automated low-field NMR relaxometry for quality control of polymers in a production setting

2007 ◽  
Vol 26 (8) ◽  
pp. 1015-1024 ◽  
Author(s):  
Sarah C. Chinn ◽  
Angela Cook-Tendulkar ◽  
Robert Maxwell ◽  
Hilary Wheeler ◽  
Mark Wilson ◽  
...  
Keyword(s):  
Quality Control ◽  
Low Field ◽  
Nmr Relaxometry ◽  
Low Field Nmr

Wear Reduction by Functional Protein Boundary Film on Poly(Vinyl Alcohol) Hydrogel

2005 ◽  
Author(s):  
K. Nakashima ◽  
Y. Sawae ◽  
T. Murakami
Keyword(s):  
Vinyl Alcohol ◽  
Film Formation ◽  
Glass Plate ◽  
Poly Vinyl Alcohol ◽  
Functional Protein ◽  
Adsorbed Film ◽  
Adsorption Condition ◽  
Boundary Film ◽  
Joint Prostheses ◽  
Pva Hydrogel

Poly(vinyl alcohol) (PVA) hydrogel is a candidate material for artificial cartilage of joint prostheses. From previous researches [1–4] it is shown that the wear of PVA hydrogel depends on the concentration of proteins in lubricants. Therefore it is considered that the adsorbed film formation by protein of albumin or γ-globulin influences upon the wear grade of PVA hydrogel. The remaining film of proteins on the glass plate was observed in fluorescence microscope. The adsorption condition of albumin and γ-globulin was different. The adsorbed film with effective reduction of the wear showed cooperative stratification of albumin and γ-globulin, but the condition of increased the wear showed separation of albumin and γ-globulin. Consequently, to reduce the wear of PVA hydrogel, cooperative stratification layers are effective.

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