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

Takumi Makimura; Keiji Minagawa; Takeshi Mori; Masami Tanaka

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 proceeding › Conference 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 language	English
Title of host publication	Polymer Preprints, Japan - 55th SPSJ Annual Meeting
Pages	1101
Number of pages	1
Volume	55
Edition	1
Publication status	Published - 2006
Event	55th SPSJ Annual Meeting - Nagoya, Japan Duration: May 24 2006 → May 26 2006

Other

Other	55th SPSJ Annual Meeting
Country/Territory	Japan
City	Nagoya
Period	5/24/06 → 5/26/06

All Science Journal Classification (ASJC) codes

Engineering(all)

Cite this

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title = "Thermosensitive behavior of aqueous solution of poly (dehydroalanine) with different combinations of alkyl groups",

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.",

author = "Takumi Makimura and Keiji Minagawa and Takeshi Mori and Masami Tanaka",

year = "2006",

language = "English",

volume = "55",

pages = "1101",

booktitle = "Polymer Preprints, Japan - 55th SPSJ Annual Meeting",

edition = "1",

note = "55th SPSJ Annual Meeting ; Conference date: 24-05-2006 Through 26-05-2006",

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TY - GEN

T1 - Thermosensitive behavior of aqueous solution of poly (dehydroalanine) with different combinations of alkyl groups

AU - Makimura, Takumi

AU - Minagawa, Keiji

AU - Mori, Takeshi

AU - Tanaka, Masami

PY - 2006

Y1 - 2006

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=33749664380&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33749664380&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:33749664380

VL - 55

SP - 1101

BT - Polymer Preprints, Japan - 55th SPSJ Annual Meeting

T2 - 55th SPSJ Annual Meeting

Y2 - 24 May 2006 through 26 May 2006

ER -

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

Abstract

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