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

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

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 conference › Paper › peer-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 language	English
Pages	3436-3437
Number of pages	2
Publication status	Published - Dec 1 2005
Externally published	Yes
Event	54th SPSJ Symposium on Macromolecules - Yamagata, Japan Duration: Sept 20 2005 → Sept 22 2005

Other

Other	54th SPSJ Symposium on Macromolecules
Country/Territory	Japan
City	Yamagata
Period	9/20/05 → 9/22/05

All Science Journal Classification (ASJC) codes

Engineering(all)

Cite this

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title = "Thermosensitive behavior of structural isomerism of poly (dehydroalanine) at acyl or ester group",

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).",

author = "Hironori Mori and Isao Fukushima and Takeshi Mori and Keiji Minagawa and Masami Tanaka",

year = "2005",

month = dec,

day = "1",

language = "English",

pages = "3436--3437",

note = "54th SPSJ Symposium on Macromolecules ; Conference date: 20-09-2005 Through 22-09-2005",

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TY - CONF

T1 - Thermosensitive behavior of structural isomerism of poly (dehydroalanine) at acyl or ester group

AU - Mori, Hironori

AU - Fukushima, Isao

AU - Mori, Takeshi

AU - Minagawa, Keiji

AU - Tanaka, Masami

PY - 2005/12/1

Y1 - 2005/12/1

N2 - 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).

AB - 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).

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UR - http://www.scopus.com/inward/citedby.url?scp=33645569305&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:33645569305

SP - 3436

EP - 3437

T2 - 54th SPSJ Symposium on Macromolecules

Y2 - 20 September 2005 through 22 September 2005

ER -

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

Abstract

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