Synthesis of T-shaped rod-coil copolymer from oligo(p-phenylenevinylene) and poly(ethylene oxide) and its self-assembling behavior

Noriyuki Hiraga, Toshihiko Harada, Takeshi Mori, Keiji Minagawa, Masami Tanaka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

T-shaped rod-coil molecules consisting of oligo(p-phenylenevinylene)(OPV) as rigid polymer and poly(ethylene oxide)(PEO) as flexible one were synthesized according to Scheme 1. Coupling reaction of 1a and 2 has not proceeded at all. Then coupling reaction between 1b and 2 was carried out. As a result, 3 of light yellow tar was obtained. The less reactivity of la was due to the large steric hindrance of large atomic radius of I. The synthesis of the T-shaped rod-coil molecules(4a, 4b) were carried out by Heck reaction between styrene and 3a, 3b. As a result, 4a and 4b were obtained. However, about 10 % of impurities were included. Purification of 4a and 4b by column chromatography were difficult. Therefore, in order to solve this problem, we considered the following synthetic scheme; first, synthesizing OPV and then, introducing PEO.

Original languageEnglish
Title of host publication54th SPSJ Annual Meeting 2005 - Polymer Preprints, Japan
Pages1013
Number of pages1
Volume54
Edition1
Publication statusPublished - 2005
Externally publishedYes
Event54th SPSJ Annual Meeting 2005 - Yokohama, Japan
Duration: May 25 2005May 27 2005

Other

Other54th SPSJ Annual Meeting 2005
CountryJapan
CityYokohama
Period5/25/055/27/05

Fingerprint

Polyethylene oxides
Copolymers
Column chromatography
Molecules
Tar
Purification
Styrene
Impurities
Polymers

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Hiraga, N., Harada, T., Mori, T., Minagawa, K., & Tanaka, M. (2005). Synthesis of T-shaped rod-coil copolymer from oligo(p-phenylenevinylene) and poly(ethylene oxide) and its self-assembling behavior. In 54th SPSJ Annual Meeting 2005 - Polymer Preprints, Japan (1 ed., Vol. 54, pp. 1013)

Synthesis of T-shaped rod-coil copolymer from oligo(p-phenylenevinylene) and poly(ethylene oxide) and its self-assembling behavior. / Hiraga, Noriyuki; Harada, Toshihiko; Mori, Takeshi; Minagawa, Keiji; Tanaka, Masami.

54th SPSJ Annual Meeting 2005 - Polymer Preprints, Japan. Vol. 54 1. ed. 2005. p. 1013.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hiraga, N, Harada, T, Mori, T, Minagawa, K & Tanaka, M 2005, Synthesis of T-shaped rod-coil copolymer from oligo(p-phenylenevinylene) and poly(ethylene oxide) and its self-assembling behavior. in 54th SPSJ Annual Meeting 2005 - Polymer Preprints, Japan. 1 edn, vol. 54, pp. 1013, 54th SPSJ Annual Meeting 2005, Yokohama, Japan, 5/25/05.
Hiraga N, Harada T, Mori T, Minagawa K, Tanaka M. Synthesis of T-shaped rod-coil copolymer from oligo(p-phenylenevinylene) and poly(ethylene oxide) and its self-assembling behavior. In 54th SPSJ Annual Meeting 2005 - Polymer Preprints, Japan. 1 ed. Vol. 54. 2005. p. 1013
Hiraga, Noriyuki ; Harada, Toshihiko ; Mori, Takeshi ; Minagawa, Keiji ; Tanaka, Masami. / Synthesis of T-shaped rod-coil copolymer from oligo(p-phenylenevinylene) and poly(ethylene oxide) and its self-assembling behavior. 54th SPSJ Annual Meeting 2005 - Polymer Preprints, Japan. Vol. 54 1. ed. 2005. pp. 1013
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abstract = "T-shaped rod-coil molecules consisting of oligo(p-phenylenevinylene)(OPV) as rigid polymer and poly(ethylene oxide)(PEO) as flexible one were synthesized according to Scheme 1. Coupling reaction of 1a and 2 has not proceeded at all. Then coupling reaction between 1b and 2 was carried out. As a result, 3 of light yellow tar was obtained. The less reactivity of la was due to the large steric hindrance of large atomic radius of I. The synthesis of the T-shaped rod-coil molecules(4a, 4b) were carried out by Heck reaction between styrene and 3a, 3b. As a result, 4a and 4b were obtained. However, about 10 {\%} of impurities were included. Purification of 4a and 4b by column chromatography were difficult. Therefore, in order to solve this problem, we considered the following synthetic scheme; first, synthesizing OPV and then, introducing PEO.",
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AU - Minagawa, Keiji

AU - Tanaka, Masami

PY - 2005

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