Effects of the Molar Mass of a Solute on Permeability through Poly(vinyl alcohol) Gel Membranes

1996 ◽  
Vol 69 (4) ◽  
pp. 883-889 ◽  
Author(s):  
Masakatsu Yonese ◽  
Masatoshi Kondo ◽  
Isamu Miyata ◽  
Sin-ichi Kugimiya ◽  
Shizuko Sato ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Molar Mass ◽  
Poly Vinyl Alcohol ◽  
Gel Membranes

Development of a Flexible Conductive Polymer Membrane on Electroactive Hydrogel Microfibers

2009 ◽  
Vol 1234 ◽  
Author(s):  
Maria Joseph Bassil ◽  
Michael Ibrahim Ibrahim ◽  
Eddy Souaid ◽  
Georges El Haj Moussa ◽  
Mario Remond El Tahchi ◽  
...  
Keyword(s):  
Electrical Stimulation ◽  
Conducting Polymers ◽  
Vinyl Alcohol ◽  
Conductive Polymer ◽  
The Other ◽  
Time Response ◽  
Poly Vinyl Alcohol ◽  
Artificial Muscles ◽  
Problem Of Time ◽  
Gel Membranes

AbstractConducting polymers and hydrogels are two classes of polymers that currently receive an increasing attention in the field of biomaterials, particularly for their application in the assembly of artificial muscles. In this paper we present the development of Polyacrylamide (PAAM) microfibers and polyaniline (PANI) - poly vinyl alcohol (PVA) conductive gel membrane.The fabricated PAAM microfibers have diameters between 1 and 12μm depending on the preparation parameters. These microfibers respond instantaneously to 100mV electrical stimulation, which solves the problem of time response of the hydrogels. On the other hand, we showed that the inclusion of conducting chains within a crosslinked gel matrix allows combining the conductivity of the PANI with the mechanical flexibility of PVA in order to provide flexible gel membranes that can adhere to the PAAM microfibers to ensure their electrical stimulation.

scholarly journals Preparation of Charged Poly(vinyl alcohol) Gel Membranes with Controlled Lattice Sizes and Permeability of Amino Acids.

1994 ◽  
Vol 51 (2) ◽  
pp. 87-92 ◽  
Author(s):  
Masamitsu MIYA ◽  
Toshiharu HAMADA ◽  
Tomoo SHIOMI ◽  
Kiyokazu IMAI
Keyword(s):  
Amino Acids ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Gel Membranes

Poly(2-bromoaniline) and Its Colloidal Dispersions

2002 ◽  
Vol 67 (3) ◽  
pp. 393-404 ◽  
Author(s):  
Jaroslav Stejskal ◽  
Miroslava Trchová ◽  
Jan Prokeš
Keyword(s):  
Hydrochloric Acid ◽  
Vinyl Alcohol ◽  
Colloidal Silica ◽  
Molar Mass ◽  
Hydroxypropyl Cellulose ◽  
Colloidal Dispersions ◽  
Poly Vinyl Alcohol ◽  
Average Molar Mass ◽  
Ammonium Peroxydisulfate ◽  
Polymeric Stabilizer

Poly(2-bromoaniline) was prepared by oxidation of 2-bromoaniline with ammonium peroxydisulfate in the presence of hydrochloric acid. The conductivity of the poly(2-bromoaniline) hydrochloride so produced was 10-6 S cm-1, its density at 20 °C 1.78 g cm-3 and weight-average molar mass 18 500 g mol-1. The degree of protonation was estimated as being a half of that of polyaniline. The structure of poly(2-bromoaniline) is discussed on the basis of FTIR spectra. Colloidal dispersions were produced when the polymerization had been carried out in the presence of a particulate or polymeric stabilizer, viz. colloidal silica, poly(vinyl alcohol), poly(N-vinylpyrrolidone) or (hydroxypropyl)cellulose. The UV-VIS spectra of colloidal dispersions are used to discuss the transition between the protonated and base forms.

Tracking the urinary excretion of high molar mass poly(vinyl alcohol)

2007 ◽  
Vol 82B (2) ◽  
pp. 383-389 ◽  
Author(s):  
Ahmed Besheer ◽  
Karsten Mäder ◽  
Sergej Kaiser ◽  
Jörg Kressler ◽  
Christine Weis ◽  
...  
Keyword(s):  
Urinary Excretion ◽  
Vinyl Alcohol ◽  
Molar Mass ◽  
Poly Vinyl Alcohol ◽  
High Molar Mass

The interaction between poly(vinyl alcohol) and low-molar-mass poly(ethylene oxide)

2012 ◽  
Vol 126 (1) ◽  
pp. 162-168 ◽  
Author(s):  
Yangbo Li ◽  
Wenqian Wu ◽  
Feng Lin ◽  
Aiming Xiang
Keyword(s):  
Ethylene Oxide ◽  
Vinyl Alcohol ◽  
Molar Mass ◽  
Poly Vinyl Alcohol ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

High modulus poly (vinyl alcohol) fibers by zone drawing

1986 ◽  
Vol 1 (6) ◽  
pp. 861-869 ◽  
Author(s):  
Paul D. Garrett ◽  
David T. Grubb
Keyword(s):  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
High Modulus

BIODEGRADATION BEHAVIOR OF POLY(VINYL ALCOHOL) - WOOD COMPOSITES

2019 ◽  
Vol 18 (1) ◽  
pp. 125-136 ◽  
Author(s):  
Luiza Jecu ◽  
Iuliana Raut ◽  
Elena Grosu ◽  
Mariana Calin ◽  
Violeta Purcar ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Wood Composites
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