Thermosensitive behavior of aqueous solution of poly (dehydroalanine) with different combinations of alkyl groups

Takumi Makimura, Keiji Minagawa, Takeshi Mori, Masami Tanaka

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

Abstract

We synthesized poly (dehydroallanine) derivatives (PDA) which have two amide groups at a -position. The phase transition temperatures of the polymer are decreases with increasing sides of alkyl group. The thermal hystereses of phase transition of polymer 1 (R 1=Et, R 2=Me)and 2 (R 1,R 2=Et) are 3 and 13 °C. The large hysteresis of polymer 2 was probably caused by strong hydrophobia interaction and strong hydrogen bonding among the polymers. The hysteresis of the polymers remains unchanged in the presence of addition salts.

Original languageEnglish
Title of host publicationPolymer Preprints, Japan - 55th SPSJ Annual Meeting
Pages1101
Number of pages1
Volume55
Edition1
Publication statusPublished - 2006
Event55th SPSJ Annual Meeting - Nagoya, Japan
Duration: May 24 2006May 26 2006

Other

Other55th SPSJ Annual Meeting
CountryJapan
CityNagoya
Period5/24/065/26/06

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Polymers
Hysteresis
Phase transitions
Personal digital assistants
Amides
Superconducting transition temperature
Hydrogen bonds
Salts
Derivatives
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Makimura, T., Minagawa, K., Mori, T., & Tanaka, M. (2006). Thermosensitive behavior of aqueous solution of poly (dehydroalanine) with different combinations of alkyl groups. In Polymer Preprints, Japan - 55th SPSJ Annual Meeting (1 ed., Vol. 55, pp. 1101)

Thermosensitive behavior of aqueous solution of poly (dehydroalanine) with different combinations of alkyl groups. / Makimura, Takumi; Minagawa, Keiji; Mori, Takeshi; Tanaka, Masami.

Polymer Preprints, Japan - 55th SPSJ Annual Meeting. Vol. 55 1. ed. 2006. p. 1101.

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

Makimura, T, Minagawa, K, Mori, T & Tanaka, M 2006, Thermosensitive behavior of aqueous solution of poly (dehydroalanine) with different combinations of alkyl groups. in Polymer Preprints, Japan - 55th SPSJ Annual Meeting. 1 edn, vol. 55, pp. 1101, 55th SPSJ Annual Meeting, Nagoya, Japan, 5/24/06.
Makimura T, Minagawa K, Mori T, Tanaka M. Thermosensitive behavior of aqueous solution of poly (dehydroalanine) with different combinations of alkyl groups. In Polymer Preprints, Japan - 55th SPSJ Annual Meeting. 1 ed. Vol. 55. 2006. p. 1101
Makimura, Takumi ; Minagawa, Keiji ; Mori, Takeshi ; Tanaka, Masami. / Thermosensitive behavior of aqueous solution of poly (dehydroalanine) with different combinations of alkyl groups. Polymer Preprints, Japan - 55th SPSJ Annual Meeting. Vol. 55 1. ed. 2006. pp. 1101
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