Preparation of poly(ester-imide) ribbons comprised of helical and non-helical blocks by copolymerization

T. Ohnishi; Tetsuya Uchida; Shinichi Yamazaki; Kunio Kimura

doi:10.1039/c6ra22494f

Preparation of poly(ester-imide) ribbons comprised of helical and non-helical blocks by copolymerization

T. Ohnishi, Tetsuya Uchida, Shinichi Yamazaki, Kunio Kimura

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

2 Citations (Scopus)

Abstract

Helical ribbons of poly[4-(5-oxy-1,3-dioxoisoindoline-2-yl)benzoyl] (PODB) were previously prepared by the homo-polymerization of N-(4-carboxyphenyl)-4-acetoxyphthalimide (CAP) in aromatic solvents. The copolymerization of CAP and p-acetoxybenzoic acid (ABA) was examined to change the helical morphology. The helical morphology was extinguished by the copolymerization of a small amount of ABA at 280 °C at a concentration of 1.0% in aromatic solvent. Based on these results, ABA was added stepwise during the homo-polymerization of CAP. When a small amount of ABA was added, copolymer crystals comprised of helical and non-helical blocks were formed. The non-helical blocks grew on the PODB helical ribbons by the precipitation of co-oligomers. This result provides a novel method to control helical morphology by copolymerization.

Original language	English
Pages (from-to)	101995-102002
Number of pages	8
Journal	RSC Advances
Volume	6
Issue number	104
DOIs	https://doi.org/10.1039/c6ra22494f
Publication status	Published - 2016

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

Access to Document

10.1039/c6ra22494f

Fingerprint Dive into the research topics of 'Preparation of poly(ester-imide) ribbons comprised of helical and non-helical blocks by copolymerization'. Together they form a unique fingerprint.

Cite this

@article{66673fba63b144b685a6d8e850ac5e15,

title = "Preparation of poly(ester-imide) ribbons comprised of helical and non-helical blocks by copolymerization",

abstract = "Helical ribbons of poly[4-(5-oxy-1,3-dioxoisoindoline-2-yl)benzoyl] (PODB) were previously prepared by the homo-polymerization of N-(4-carboxyphenyl)-4-acetoxyphthalimide (CAP) in aromatic solvents. The copolymerization of CAP and p-acetoxybenzoic acid (ABA) was examined to change the helical morphology. The helical morphology was extinguished by the copolymerization of a small amount of ABA at 280 °C at a concentration of 1.0% in aromatic solvent. Based on these results, ABA was added stepwise during the homo-polymerization of CAP. When a small amount of ABA was added, copolymer crystals comprised of helical and non-helical blocks were formed. The non-helical blocks grew on the PODB helical ribbons by the precipitation of co-oligomers. This result provides a novel method to control helical morphology by copolymerization.",

author = "T. Ohnishi and Tetsuya Uchida and Shinichi Yamazaki and Kunio Kimura",

year = "2016",

doi = "10.1039/c6ra22494f",

language = "English",

volume = "6",

pages = "101995--102002",

journal = "RSC Advances",

issn = "2046-2069",

publisher = "Royal Society of Chemistry",

number = "104",

}

TY - JOUR

T1 - Preparation of poly(ester-imide) ribbons comprised of helical and non-helical blocks by copolymerization

AU - Ohnishi, T.

AU - Uchida, Tetsuya

AU - Yamazaki, Shinichi

AU - Kimura, Kunio

PY - 2016

Y1 - 2016

N2 - Helical ribbons of poly[4-(5-oxy-1,3-dioxoisoindoline-2-yl)benzoyl] (PODB) were previously prepared by the homo-polymerization of N-(4-carboxyphenyl)-4-acetoxyphthalimide (CAP) in aromatic solvents. The copolymerization of CAP and p-acetoxybenzoic acid (ABA) was examined to change the helical morphology. The helical morphology was extinguished by the copolymerization of a small amount of ABA at 280 °C at a concentration of 1.0% in aromatic solvent. Based on these results, ABA was added stepwise during the homo-polymerization of CAP. When a small amount of ABA was added, copolymer crystals comprised of helical and non-helical blocks were formed. The non-helical blocks grew on the PODB helical ribbons by the precipitation of co-oligomers. This result provides a novel method to control helical morphology by copolymerization.

AB - Helical ribbons of poly[4-(5-oxy-1,3-dioxoisoindoline-2-yl)benzoyl] (PODB) were previously prepared by the homo-polymerization of N-(4-carboxyphenyl)-4-acetoxyphthalimide (CAP) in aromatic solvents. The copolymerization of CAP and p-acetoxybenzoic acid (ABA) was examined to change the helical morphology. The helical morphology was extinguished by the copolymerization of a small amount of ABA at 280 °C at a concentration of 1.0% in aromatic solvent. Based on these results, ABA was added stepwise during the homo-polymerization of CAP. When a small amount of ABA was added, copolymer crystals comprised of helical and non-helical blocks were formed. The non-helical blocks grew on the PODB helical ribbons by the precipitation of co-oligomers. This result provides a novel method to control helical morphology by copolymerization.

UR - http://www.scopus.com/inward/record.url?scp=84993945095&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84993945095&partnerID=8YFLogxK

U2 - 10.1039/c6ra22494f

DO - 10.1039/c6ra22494f

M3 - Article

AN - SCOPUS:84993945095

VL - 6

SP - 101995

EP - 102002

JO - RSC Advances

JF - RSC Advances

SN - 2046-2069

IS - 104

ER -

Preparation of poly(ester-imide) ribbons comprised of helical and non-helical blocks by copolymerization

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Cite this