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Titolo:
Water stability of syndiotactic poly(vinyl alcohol)/iodine complex film
Autore:
Lyoo, WS; Yeum, JH; Choi, JH; Song, HC; Ji, BC; Kim, JP; Noh, TH; Yoon, WJ; Cheong, TS;
Indirizzi:
Yeungnam Univ, Sch Text, Kyongsan 712749, South Korea Yeungnam Univ Kyongsan South Korea 712749 , Kyongsan 712749, South Korea Yeungnam Univ, Reg Res Ctr, Kyongsan 712749, South Korea Yeungnam Univ Kyongsan South Korea 712749 , Kyongsan 712749, South Korea Kyungpook Natl Univ, Dept Dyeing & Finishing, Taegu 702701, South Korea Kyungpook Natl Univ Taegu South Korea 702701 , Taegu 702701, South Korea Seoul Natl Univ, Dept Fiber & Polymer Sci, Seoul 151742, South Korea SeoulNatl Univ Seoul South Korea 151742 Sci, Seoul 151742, South Korea Ace Digitech Ltd, Jangan Ku, Suwon 440310, South Korea Ace Digitech Ltd Suwon South Korea 440310 Ku, Suwon 440310, South Korea
Titolo Testata:
JOURNAL OF APPLIED POLYMER SCIENCE
fascicolo: 1, volume: 82, anno: 2001,
pagine: 108 - 113
SICI:
0021-8995(20011003)82:1<108:WSOSPA>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
ALCOHOL)-IODINE COMPLEX; SAPONIFICATION; PIVALATE; FIBERS;
Keywords:
desorption; iodine; syndiotactic poly(vinyl alcohol) (s-PVA); solubility; drawing;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Lyoo, WS Yeungnam Univ, Sch Text, Kyongsan 712749, South Korea Yeungnam Univ Kyongsan South Korea 712749 n 712749, South Korea
Citazione:
W.S. Lyoo et al., "Water stability of syndiotactic poly(vinyl alcohol)/iodine complex film", J APPL POLY, 82(1), 2001, pp. 108-113

Abstract

The desorption behavior of iodine in syndiotactic poly(vinyl alcohol) (s-PVA) with a syndiotactic diad content of 63.1%; iodine film in water was investigated in relation to the solubility of s-PVA in water. Despite a low number-average degree of polymerization of 900, the degree of solubility of s-PVA film in water at 80 degreesC was limited to about 10%, whereas atacticpoly(vinyl alcohol) (a-PVA) film was completely soluble at a lower temperature, 50 degreesC. The degree of iodine desorption of s-PVA/iodine film at a high temperature decreased remarkably compared with that of a-PVA/iodine film. The fastness of iodine of the drawn s-PVA/iodine film was far superior to that of the undrawn film. Over a draw ratio of 5, the iodine desorption was suppressed significantly with increasing drawing temperature rather than the draw ratio. In addition, the iodine desorption of postdrawn s-PVA/iodine film was lower than that of predrawn s-PVA/iodine film. (C) 2001 JohnWiley & Sons, Inc.

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Documento generato il 08/08/20 alle ore 18:11:47