Water stability of syndiotactic poly(vinyl alcohol)/iodine complex film

Won Seok Lyoo; Jeong Hyun Yeum; Jin Hyun Choi; Han Chul Song; Byung Chul Ji; Jae Pil Kim; Tae Hwan Noh; Woong Jae Yoon; Tae Sik Cheong

doi:10.1002/app.1829

Water stability of syndiotactic poly(vinyl alcohol)/iodine complex film

Won Seok Lyoo, Jeong Hyun Yeum, Jin Hyun Choi, Han Chul Song, Byung Chul Ji, Jae Pil Kim, Tae Hwan Noh, Woong Jae Yoon, Tae Sik Cheong

Department of Biofibers and Biomaterials Science

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

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°C was limited to about 10%, whereas atactic poly(vinyl alcohol) (a-PVA) film was completely soluble at a lower temperature, 50°C. 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.

Original language	English
Pages (from-to)	108-113
Number of pages	6
Journal	Journal of Applied Polymer Science
Volume	82
Issue number	1
DOIs	https://doi.org/10.1002/app.1829
State	Published - 19 Jul 2001

Keywords

Desorption
Drawing
Iodine
Solubility
Syndiotactic poly(vinyl alcohol) (s-PVA)

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10.1002/app.1829

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title = "Water stability of syndiotactic poly(vinyl alcohol)/iodine complex film",

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°C was limited to about 10%, whereas atactic poly(vinyl alcohol) (a-PVA) film was completely soluble at a lower temperature, 50°C. 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.",

keywords = "Desorption, Drawing, Iodine, Solubility, Syndiotactic poly(vinyl alcohol) (s-PVA)",

author = "Lyoo, {Won Seok} and Yeum, {Jeong Hyun} and Choi, {Jin Hyun} and Song, {Han Chul} and Ji, {Byung Chul} and Kim, {Jae Pil} and Noh, {Tae Hwan} and Yoon, {Woong Jae} and Cheong, {Tae Sik}",

year = "2001",

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doi = "10.1002/app.1829",

language = "English",

volume = "82",

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AU - Lyoo, Won Seok

AU - Yeum, Jeong Hyun

AU - Choi, Jin Hyun

AU - Song, Han Chul

AU - Ji, Byung Chul

AU - Kim, Jae Pil

AU - Noh, Tae Hwan

AU - Yoon, Woong Jae

AU - Cheong, Tae Sik

PY - 2001/7/19

Y1 - 2001/7/19

N2 - 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°C was limited to about 10%, whereas atactic poly(vinyl alcohol) (a-PVA) film was completely soluble at a lower temperature, 50°C. 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.

AB - 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°C was limited to about 10%, whereas atactic poly(vinyl alcohol) (a-PVA) film was completely soluble at a lower temperature, 50°C. 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.

KW - Desorption

KW - Drawing

KW - Iodine

KW - Solubility

KW - Syndiotactic poly(vinyl alcohol) (s-PVA)

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ER -

Water stability of syndiotactic poly(vinyl alcohol)/iodine complex film

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