The synthesis of sliding graft copolymers and temperature-responsive behavior

Yuya Okamoto; Toshiyuki Kataoka; Masatoshi Kidowaki; Kohzo Ito

The synthesis of sliding graft copolymers and temperature-responsive behavior

Yuya Okamoto, Toshiyuki Kataoka, Masatoshi Kidowaki, Kohzo Ito

Research output: Contribution to conference › Paper › peer-review

Abstract

We studied temperature responsive behavior of the sliding graft copolymers (SGC) having sliding linear molecules as side chains grafted to the cyclodextrins (CDs) of polyrotaxane (PR). These SGCs would show a wide variety of high-order structures due to their movable side chains. We synthesized the SGCs with alkyl oligoethylene glycols (CnEm) grafted to CDs and investigated their structural and conformational behavior in dilute solution under various conditions. For the aqueous solution of C2E2-g-PR, aggregation was observed around 40 °C by DSC and DLS. Moreover, the small angle X-ray scattering (SAXS) results showed unique characteristic of gradual growth of aggregation up to 70 °C.

Original language	English
Number of pages	1
Publication status	Published - 2006 Dec 1
Externally published	Yes
Event	55th Society of Polymer Science Japan Symposium on Macromolecules - Toyama, Japan Duration: 2006 Sept 20 → 2006 Sept 22

Conference

Conference	55th Society of Polymer Science Japan Symposium on Macromolecules
Country/Territory	Japan
City	Toyama
Period	06/9/20 → 06/9/22

Keywords

Block copolymer
Cyclodextrin
Phase separation
Polyrotaxane

ASJC Scopus subject areas

Engineering(all)

Cite this

@conference{82f54a9cf7fd4ae48edb8403641ffe17,

title = "The synthesis of sliding graft copolymers and temperature-responsive behavior",

abstract = "We studied temperature responsive behavior of the sliding graft copolymers (SGC) having sliding linear molecules as side chains grafted to the cyclodextrins (CDs) of polyrotaxane (PR). These SGCs would show a wide variety of high-order structures due to their movable side chains. We synthesized the SGCs with alkyl oligoethylene glycols (CnEm) grafted to CDs and investigated their structural and conformational behavior in dilute solution under various conditions. For the aqueous solution of C2E2-g-PR, aggregation was observed around 40 °C by DSC and DLS. Moreover, the small angle X-ray scattering (SAXS) results showed unique characteristic of gradual growth of aggregation up to 70 °C.",

keywords = "Block copolymer, Cyclodextrin, Phase separation, Polyrotaxane",

author = "Yuya Okamoto and Toshiyuki Kataoka and Masatoshi Kidowaki and Kohzo Ito",

year = "2006",

month = dec,

day = "1",

language = "English",

note = "55th Society of Polymer Science Japan Symposium on Macromolecules ; Conference date: 20-09-2006 Through 22-09-2006",

}

TY - CONF

T1 - The synthesis of sliding graft copolymers and temperature-responsive behavior

AU - Okamoto, Yuya

AU - Kataoka, Toshiyuki

AU - Kidowaki, Masatoshi

AU - Ito, Kohzo

PY - 2006/12/1

Y1 - 2006/12/1

N2 - We studied temperature responsive behavior of the sliding graft copolymers (SGC) having sliding linear molecules as side chains grafted to the cyclodextrins (CDs) of polyrotaxane (PR). These SGCs would show a wide variety of high-order structures due to their movable side chains. We synthesized the SGCs with alkyl oligoethylene glycols (CnEm) grafted to CDs and investigated their structural and conformational behavior in dilute solution under various conditions. For the aqueous solution of C2E2-g-PR, aggregation was observed around 40 °C by DSC and DLS. Moreover, the small angle X-ray scattering (SAXS) results showed unique characteristic of gradual growth of aggregation up to 70 °C.

AB - We studied temperature responsive behavior of the sliding graft copolymers (SGC) having sliding linear molecules as side chains grafted to the cyclodextrins (CDs) of polyrotaxane (PR). These SGCs would show a wide variety of high-order structures due to their movable side chains. We synthesized the SGCs with alkyl oligoethylene glycols (CnEm) grafted to CDs and investigated their structural and conformational behavior in dilute solution under various conditions. For the aqueous solution of C2E2-g-PR, aggregation was observed around 40 °C by DSC and DLS. Moreover, the small angle X-ray scattering (SAXS) results showed unique characteristic of gradual growth of aggregation up to 70 °C.

KW - Block copolymer

KW - Cyclodextrin

KW - Phase separation

KW - Polyrotaxane

UR - http://www.scopus.com/inward/record.url?scp=33846168049&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33846168049&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:33846168049

T2 - 55th Society of Polymer Science Japan Symposium on Macromolecules

Y2 - 20 September 2006 through 22 September 2006

ER -

The synthesis of sliding graft copolymers and temperature-responsive behavior

Abstract

Conference

Keywords

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this