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 | |
| Publication status | Published - 2016 |
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ASJC Scopus subject areas
- Chemistry(all)
- Chemical Engineering(all)
Cite this
Preparation of poly(ester-imide) ribbons comprised of helical and non-helical blocks by copolymerization. / Ohnishi, T.; Uchida, Tetsuya; Yamazaki, Shinichi; Kimura, Kunio.
In: RSC Advances, Vol. 6, No. 104, 2016, p. 101995-102002.Research output: Contribution to journal › Article
}
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.
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U2 - 10.1039/c6ra22494f
DO - 10.1039/c6ra22494f
M3 - Article
VL - 6
SP - 101995
EP - 102002
JO - RSC Advances
JF - RSC Advances
SN - 2046-2069
IS - 104
ER -