scholarly journals Studies on the Formation of Magnetite Colloidal Dispersions in the Presence of Poly(vinyl alcohol)

1990 ◽  
Vol 63 (3) ◽  
pp. 746-748 ◽  
Author(s):  
Hiroshi Yokoi ◽  
Kazuhiro Yagishita ◽  
Yoichiro Nakanishi
Keyword(s):  
Vinyl Alcohol ◽  
Colloidal Dispersions ◽  
Poly Vinyl Alcohol

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.

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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