Liquid-Crystalline Stereoregular Polyketone Prepared from a Mesogenic Vinylarene and Carbon Monoxide

Yasutoyo Kawashima; Kyoko Nozaki; Tamejiro Hiyama; Masafumi Yoshio; Kiyoshi Kanie; Takashi Kato

doi:10.1002/pola.10843

Liquid-Crystalline Stereoregular Polyketone Prepared from a Mesogenic Vinylarene and Carbon Monoxide

Yasutoyo Kawashima, Kyoko Nozaki, Tamejiro Hiyama, Masafumi Yoshio, Kiyoshi Kanie, Takashi Kato

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

8 Citations (Scopus)

Abstract

Preparation of liquid-crystalline stereoregular polyketone from a mesogenic vinylarene and carbon monoxide was discussed. Isotactic and syndiotactic polyketones were synthesized by the alternating copolymerizations of a mesogenic vinylarene, 4-cyano-4́-[8-(4-vinylphenyl)octyl-1-oxy]-biphenyl, with carbon monoxide. It was observed that isotactic polyketone was an amorphous polymer that did not show any mesophase, whereas the syndiotactic polyketone exhibited liquid crystallinity.

Original language	English
Pages (from-to)	3556-3563
Number of pages	8
Journal	Journal of Polymer Science, Part A: Polymer Chemistry
Volume	41
Issue number	22
DOIs	https://doi.org/10.1002/pola.10843
Publication status	Published - 2003 Nov 15
Externally published	Yes

Keywords

Chiral
Liquid-crystalline polymers
Polyketones
Side-chain liquid-crystalline polymers
Stereospecific polymers
Tacticity

ASJC Scopus subject areas

Polymers and Plastics
Organic Chemistry
Materials Chemistry

Access to Document

10.1002/pola.10843

Cite this

@article{f478e03470e647459bc6584a968f117e,

title = "Liquid-Crystalline Stereoregular Polyketone Prepared from a Mesogenic Vinylarene and Carbon Monoxide",

abstract = "Preparation of liquid-crystalline stereoregular polyketone from a mesogenic vinylarene and carbon monoxide was discussed. Isotactic and syndiotactic polyketones were synthesized by the alternating copolymerizations of a mesogenic vinylarene, 4-cyano-{\'4}-[8-(4-vinylphenyl)octyl-1-oxy]-biphenyl, with carbon monoxide. It was observed that isotactic polyketone was an amorphous polymer that did not show any mesophase, whereas the syndiotactic polyketone exhibited liquid crystallinity.",

keywords = "Chiral, Liquid-crystalline polymers, Polyketones, Side-chain liquid-crystalline polymers, Stereospecific polymers, Tacticity",

author = "Yasutoyo Kawashima and Kyoko Nozaki and Tamejiro Hiyama and Masafumi Yoshio and Kiyoshi Kanie and Takashi Kato",

year = "2003",

month = nov,

day = "15",

doi = "10.1002/pola.10843",

language = "English",

volume = "41",

pages = "3556--3563",

journal = "Journal of Polymer Science, Part A: Polymer Chemistry",

issn = "0887-624X",

publisher = "John Wiley and Sons Inc.",

number = "22",

}

TY - JOUR

T1 - Liquid-Crystalline Stereoregular Polyketone Prepared from a Mesogenic Vinylarene and Carbon Monoxide

AU - Kawashima, Yasutoyo

AU - Nozaki, Kyoko

AU - Hiyama, Tamejiro

AU - Yoshio, Masafumi

AU - Kanie, Kiyoshi

AU - Kato, Takashi

PY - 2003/11/15

Y1 - 2003/11/15

N2 - Preparation of liquid-crystalline stereoregular polyketone from a mesogenic vinylarene and carbon monoxide was discussed. Isotactic and syndiotactic polyketones were synthesized by the alternating copolymerizations of a mesogenic vinylarene, 4-cyano-4́-[8-(4-vinylphenyl)octyl-1-oxy]-biphenyl, with carbon monoxide. It was observed that isotactic polyketone was an amorphous polymer that did not show any mesophase, whereas the syndiotactic polyketone exhibited liquid crystallinity.

AB - Preparation of liquid-crystalline stereoregular polyketone from a mesogenic vinylarene and carbon monoxide was discussed. Isotactic and syndiotactic polyketones were synthesized by the alternating copolymerizations of a mesogenic vinylarene, 4-cyano-4́-[8-(4-vinylphenyl)octyl-1-oxy]-biphenyl, with carbon monoxide. It was observed that isotactic polyketone was an amorphous polymer that did not show any mesophase, whereas the syndiotactic polyketone exhibited liquid crystallinity.

KW - Chiral

KW - Liquid-crystalline polymers

KW - Polyketones

KW - Side-chain liquid-crystalline polymers

KW - Stereospecific polymers

KW - Tacticity

UR - http://www.scopus.com/inward/record.url?scp=0242524486&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0242524486&partnerID=8YFLogxK

U2 - 10.1002/pola.10843

DO - 10.1002/pola.10843

M3 - Article

AN - SCOPUS:0242524486

SN - 0887-624X

VL - 41

SP - 3556

EP - 3563

JO - Journal of Polymer Science, Part A: Polymer Chemistry

JF - Journal of Polymer Science, Part A: Polymer Chemistry

IS - 22

ER -

Liquid-Crystalline Stereoregular Polyketone Prepared from a Mesogenic Vinylarene and Carbon Monoxide

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this