Formation of nanometer-sized particles by self-assembly of copoly(amide acid)s in water

Takashi Hamada; Seiji Sakamoto; Kazuaki Kudo

Formation of nanometer-sized particles by self-assembly of copoly(amide acid)s in water

Takashi Hamada, Seiji Sakamoto, Kazuaki Kudo

Division of Organic- and Biomaterials Research

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

Abstract

We prepared amphiphilic alternating copoly(amide acid)s (PAAs) from rel[1R,5S,6R]-3-oxabicyclo [3.2.1]octane-2,4-dione-6-spiro-3′- (tetrahydrofuran-2′,5′-dione)(DAn), 2,4-diaminobenzenesulfonic acid and nonsulfonated diamines in one pot based on unique regioselectivity in the ring opening reaction of DAn. The aggregation behavior of PAAs in aqueous solution were studied using transmission electron microscopy and dynamic light-scattering measurements. In general, spherical aggregates were observed. We also observed the difference in the aggregation behavior between alternating and random copolymers.

Original language	English
Pages	3910-3911
Number of pages	2
Publication status	Published - 2005 Dec 1
Event	54th SPSJ Symposium on Macromolecules - Yamagata, Japan Duration: 2005 Sep 20 → 2005 Sep 22

Other

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

Keywords

Amphiphilic
Copoly(amide acid)s
Particles
Polycondensation
Self-assembly

ASJC Scopus subject areas

Engineering(all)

Cite this

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title = "Formation of nanometer-sized particles by self-assembly of copoly(amide acid)s in water",

abstract = "We prepared amphiphilic alternating copoly(amide acid)s (PAAs) from rel[1R,5S,6R]-3-oxabicyclo [3.2.1]octane-2,4-dione-6-spiro-3′- (tetrahydrofuran-2′,5′-dione)(DAn), 2,4-diaminobenzenesulfonic acid and nonsulfonated diamines in one pot based on unique regioselectivity in the ring opening reaction of DAn. The aggregation behavior of PAAs in aqueous solution were studied using transmission electron microscopy and dynamic light-scattering measurements. In general, spherical aggregates were observed. We also observed the difference in the aggregation behavior between alternating and random copolymers.",

keywords = "Amphiphilic, Copoly(amide acid)s, Particles, Polycondensation, Self-assembly",

author = "Takashi Hamada and Seiji Sakamoto and Kazuaki Kudo",

year = "2005",

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day = "1",

language = "English",

pages = "3910--3911",

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

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TY - CONF

T1 - Formation of nanometer-sized particles by self-assembly of copoly(amide acid)s in water

AU - Hamada, Takashi

AU - Sakamoto, Seiji

AU - Kudo, Kazuaki

PY - 2005/12/1

Y1 - 2005/12/1

N2 - We prepared amphiphilic alternating copoly(amide acid)s (PAAs) from rel[1R,5S,6R]-3-oxabicyclo [3.2.1]octane-2,4-dione-6-spiro-3′- (tetrahydrofuran-2′,5′-dione)(DAn), 2,4-diaminobenzenesulfonic acid and nonsulfonated diamines in one pot based on unique regioselectivity in the ring opening reaction of DAn. The aggregation behavior of PAAs in aqueous solution were studied using transmission electron microscopy and dynamic light-scattering measurements. In general, spherical aggregates were observed. We also observed the difference in the aggregation behavior between alternating and random copolymers.

AB - We prepared amphiphilic alternating copoly(amide acid)s (PAAs) from rel[1R,5S,6R]-3-oxabicyclo [3.2.1]octane-2,4-dione-6-spiro-3′- (tetrahydrofuran-2′,5′-dione)(DAn), 2,4-diaminobenzenesulfonic acid and nonsulfonated diamines in one pot based on unique regioselectivity in the ring opening reaction of DAn. The aggregation behavior of PAAs in aqueous solution were studied using transmission electron microscopy and dynamic light-scattering measurements. In general, spherical aggregates were observed. We also observed the difference in the aggregation behavior between alternating and random copolymers.

KW - Amphiphilic

KW - Copoly(amide acid)s

KW - Particles

KW - Polycondensation

KW - Self-assembly

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M3 - Paper

AN - SCOPUS:33645581269

SP - 3910

EP - 3911

T2 - 54th SPSJ Symposium on Macromolecules

Y2 - 20 September 2005 through 22 September 2005

ER -

Formation of nanometer-sized particles by self-assembly of copoly(amide acid)s in water

Abstract

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Keywords

ASJC Scopus subject areas

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