Morphology assisted exchange reaction of poly(p-oxybenzoyl-co-p- mercaptobenzoyl)

Yukio Fujiwara; Shin Ichiro Kohama; Shinichi Yamazaki; Kumio Kimura

Morphology assisted exchange reaction of poly(p-oxybenzoyl-co-p- mercaptobenzoyl)

Yukio Fujiwara, Shin Ichiro Kohama, Shinichi Yamazaki, Kumio Kimura

Research output: Contribution to conference › Paper › peer-review

Abstract

Poly(p-oxyberizoyi-co-p-mercaptobenzoyl) (POB-co-PMB) needle-like crystals containing 7 mol%; p-oxybenzoyl (OB) unit were converted to poly(p-oxybenzoyl) crystals by heat treatment with S-acety W-marcaptobenzoic acid in an aromatic solvent via ester-thioester exchange reaction with reorganizing the super-structure. The morphology changed from needle to fish-bone while p-mercaptobenzoyl moiety was excluded from the crystals. When POB-co-PMB needle-like crystals containing 64 mol% OB unit was heat-treated withp-acetoxybenzoic acid, the content of OB unit increased to 89 mol% with maintaining the needle-like morphology. p-Mercaptobenzoyl unit in the crystals prepared in the middle copolymerization ratio was replaced by OB unit via exchange reactions between solid and liquid phases under the guidance of super-structure.

Original language	English
Number of pages	1
Publication status	Published - Oct 18 2006
Event	55th SPSJ Annual Meeting - Nagoya, Japan Duration: May 24 2006 → May 26 2006

Other

Other	55th SPSJ Annual Meeting
Country	Japan
City	Nagoya
Period	5/24/06 → 5/26/06

Keywords

Morphology
Poly(p-oxyberizoyi-co-p-mercaptobenzoyl)
Transesterification
Whisker

ASJC Scopus subject areas

Engineering(all)

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@conference{dc06c90dc7f34488ada6bdb5efc297c3,

title = "Morphology assisted exchange reaction of poly(p-oxybenzoyl-co-p- mercaptobenzoyl)",

abstract = "Poly(p-oxyberizoyi-co-p-mercaptobenzoyl) (POB-co-PMB) needle-like crystals containing 7 mol%; p-oxybenzoyl (OB) unit were converted to poly(p-oxybenzoyl) crystals by heat treatment with S-acety W-marcaptobenzoic acid in an aromatic solvent via ester-thioester exchange reaction with reorganizing the super-structure. The morphology changed from needle to fish-bone while p-mercaptobenzoyl moiety was excluded from the crystals. When POB-co-PMB needle-like crystals containing 64 mol% OB unit was heat-treated withp-acetoxybenzoic acid, the content of OB unit increased to 89 mol% with maintaining the needle-like morphology. p-Mercaptobenzoyl unit in the crystals prepared in the middle copolymerization ratio was replaced by OB unit via exchange reactions between solid and liquid phases under the guidance of super-structure.",

keywords = "Morphology, Poly(p-oxyberizoyi-co-p-mercaptobenzoyl), Transesterification, Whisker",

author = "Yukio Fujiwara and Kohama, {Shin Ichiro} and Shinichi Yamazaki and Kumio Kimura",

year = "2006",

month = oct,

day = "18",

language = "English",

note = "55th SPSJ Annual Meeting ; Conference date: 24-05-2006 Through 26-05-2006",

}

TY - CONF

T1 - Morphology assisted exchange reaction of poly(p-oxybenzoyl-co-p- mercaptobenzoyl)

AU - Fujiwara, Yukio

AU - Kohama, Shin Ichiro

AU - Yamazaki, Shinichi

AU - Kimura, Kumio

PY - 2006/10/18

Y1 - 2006/10/18

N2 - Poly(p-oxyberizoyi-co-p-mercaptobenzoyl) (POB-co-PMB) needle-like crystals containing 7 mol%; p-oxybenzoyl (OB) unit were converted to poly(p-oxybenzoyl) crystals by heat treatment with S-acety W-marcaptobenzoic acid in an aromatic solvent via ester-thioester exchange reaction with reorganizing the super-structure. The morphology changed from needle to fish-bone while p-mercaptobenzoyl moiety was excluded from the crystals. When POB-co-PMB needle-like crystals containing 64 mol% OB unit was heat-treated withp-acetoxybenzoic acid, the content of OB unit increased to 89 mol% with maintaining the needle-like morphology. p-Mercaptobenzoyl unit in the crystals prepared in the middle copolymerization ratio was replaced by OB unit via exchange reactions between solid and liquid phases under the guidance of super-structure.

AB - Poly(p-oxyberizoyi-co-p-mercaptobenzoyl) (POB-co-PMB) needle-like crystals containing 7 mol%; p-oxybenzoyl (OB) unit were converted to poly(p-oxybenzoyl) crystals by heat treatment with S-acety W-marcaptobenzoic acid in an aromatic solvent via ester-thioester exchange reaction with reorganizing the super-structure. The morphology changed from needle to fish-bone while p-mercaptobenzoyl moiety was excluded from the crystals. When POB-co-PMB needle-like crystals containing 64 mol% OB unit was heat-treated withp-acetoxybenzoic acid, the content of OB unit increased to 89 mol% with maintaining the needle-like morphology. p-Mercaptobenzoyl unit in the crystals prepared in the middle copolymerization ratio was replaced by OB unit via exchange reactions between solid and liquid phases under the guidance of super-structure.

KW - Morphology

KW - Poly(p-oxyberizoyi-co-p-mercaptobenzoyl)

KW - Transesterification

KW - Whisker

UR - http://www.scopus.com/inward/record.url?scp=33749657485&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33749657485&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:33749657485

T2 - 55th SPSJ Annual Meeting

Y2 - 24 May 2006 through 26 May 2006

ER -

Morphology assisted exchange reaction of poly(p-oxybenzoyl-co-p- mercaptobenzoyl)

Abstract

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Keywords

ASJC Scopus subject areas

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