Thermosensitive behavior of structural isomerism of poly (dehydroalanine) at acyl or ester group

Hironori Mori, Isao Fukushima, Takeshi Mori, Keiji Minagawa, Masami Tanaka

Research output: Contribution to conferencePaperpeer-review

Abstract

Poly (dehydroalanine)s that have geminal substituent at α-position were synthesized. We have studied the effect of various alkyl groups of the polymers on their phase transition behavior. For PDA 1 series, the cloud points of polymer with iPr at R1 or R2 were higher than those with nPr at R1 or R2. In the combination of two polymers 1 / 3, 2 / 4 R1 and R2 were replased with each other. The cloud points of the polymer with small alkyl groups at R1 were higher than those with smaller ones. On the other hand, the cloud point of PDA 2 series (R1 =Me, R2= nPr) were higher than those of PDA 1series (polymer 1or 3).

Original languageEnglish
Pages3436-3437
Number of pages2
Publication statusPublished - Dec 1 2005
Externally publishedYes
Event54th SPSJ Symposium on Macromolecules - Yamagata, Japan
Duration: Sep 20 2005Sep 22 2005

Other

Other54th SPSJ Symposium on Macromolecules
CountryJapan
CityYamagata
Period9/20/059/22/05

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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