Synthesis and micellization of star-shaped poly(ethylene glycol)-block-poly(ε-caprolactone)

Keon Hyeong Kim, Guo Hua Cui, Hyung Jun Lim, June Huh, Cheol Hee Ahn, Won Ho Jo

Research output: Contribution to journalArticle

72 Citations (Scopus)

Abstract

The relationship between the architecture of block copolymers and their micellar properties was investigated. Diblock, 3-arm star-shaped and 4-arm star-shaped block copolymers based on poly(ethylene glycol) and poly (ε-caprolactone) were synthesized. Micelles of star-shaped block copolymer in an aqueous solution were then prepared by a solvent evaporation method. The critical micelle concentration and the size of the micelles were measured by the steady-state pyrene fluorescence method and dynamic light scattering, respectively. The CMC decreased in the order di-,3-arm star-shaped and 4-arm star-shaped block copolymer. The size of the micelles increased in the same order as the CMC. Theory also predicts that the formation of micelles becomes easier for 4-arm star-shaped block copolymers than for di- and 3-arm star-shaped block copolymers, which qualitatively agrees with the experiments.

Original languageEnglish
Pages (from-to)1684-1692
Number of pages9
JournalMacromolecular Chemistry and Physics
Volume205
Issue number12
DOIs
Publication statusPublished - 2004 Aug 12
Externally publishedYes

Fingerprint

Micellization
block copolymers
Polyethylene glycols
Stars
glycols
ethylene
Block copolymers
micelles
stars
Micelles
synthesis
pyrenes
Critical micelle concentration
Pyrene
Dynamic light scattering
polycaprolactone
light scattering
evaporation
Evaporation
aqueous solutions

Keywords

  • Block copolymers
  • Micelles
  • PCL
  • PEG
  • Star polymers

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

Cite this

Synthesis and micellization of star-shaped poly(ethylene glycol)-block-poly(ε-caprolactone). / Kim, Keon Hyeong; Cui, Guo Hua; Lim, Hyung Jun; Huh, June; Ahn, Cheol Hee; Jo, Won Ho.

In: Macromolecular Chemistry and Physics, Vol. 205, No. 12, 12.08.2004, p. 1684-1692.

Research output: Contribution to journalArticle

Kim, Keon Hyeong ; Cui, Guo Hua ; Lim, Hyung Jun ; Huh, June ; Ahn, Cheol Hee ; Jo, Won Ho. / Synthesis and micellization of star-shaped poly(ethylene glycol)-block-poly(ε-caprolactone). In: Macromolecular Chemistry and Physics. 2004 ; Vol. 205, No. 12. pp. 1684-1692.
@article{c93fcdd65864400eb361ebf013a1a5bc,
title = "Synthesis and micellization of star-shaped poly(ethylene glycol)-block-poly(ε-caprolactone)",
abstract = "The relationship between the architecture of block copolymers and their micellar properties was investigated. Diblock, 3-arm star-shaped and 4-arm star-shaped block copolymers based on poly(ethylene glycol) and poly (ε-caprolactone) were synthesized. Micelles of star-shaped block copolymer in an aqueous solution were then prepared by a solvent evaporation method. The critical micelle concentration and the size of the micelles were measured by the steady-state pyrene fluorescence method and dynamic light scattering, respectively. The CMC decreased in the order di-,3-arm star-shaped and 4-arm star-shaped block copolymer. The size of the micelles increased in the same order as the CMC. Theory also predicts that the formation of micelles becomes easier for 4-arm star-shaped block copolymers than for di- and 3-arm star-shaped block copolymers, which qualitatively agrees with the experiments.",
keywords = "Block copolymers, Micelles, PCL, PEG, Star polymers",
author = "Kim, {Keon Hyeong} and Cui, {Guo Hua} and Lim, {Hyung Jun} and June Huh and Ahn, {Cheol Hee} and Jo, {Won Ho}",
year = "2004",
month = "8",
day = "12",
doi = "10.1002/macp.200400084",
language = "English",
volume = "205",
pages = "1684--1692",
journal = "Macromolecular Chemistry and Physics",
issn = "1022-1352",
publisher = "Wiley-VCH Verlag",
number = "12",

}

TY - JOUR

T1 - Synthesis and micellization of star-shaped poly(ethylene glycol)-block-poly(ε-caprolactone)

AU - Kim, Keon Hyeong

AU - Cui, Guo Hua

AU - Lim, Hyung Jun

AU - Huh, June

AU - Ahn, Cheol Hee

AU - Jo, Won Ho

PY - 2004/8/12

Y1 - 2004/8/12

N2 - The relationship between the architecture of block copolymers and their micellar properties was investigated. Diblock, 3-arm star-shaped and 4-arm star-shaped block copolymers based on poly(ethylene glycol) and poly (ε-caprolactone) were synthesized. Micelles of star-shaped block copolymer in an aqueous solution were then prepared by a solvent evaporation method. The critical micelle concentration and the size of the micelles were measured by the steady-state pyrene fluorescence method and dynamic light scattering, respectively. The CMC decreased in the order di-,3-arm star-shaped and 4-arm star-shaped block copolymer. The size of the micelles increased in the same order as the CMC. Theory also predicts that the formation of micelles becomes easier for 4-arm star-shaped block copolymers than for di- and 3-arm star-shaped block copolymers, which qualitatively agrees with the experiments.

AB - The relationship between the architecture of block copolymers and their micellar properties was investigated. Diblock, 3-arm star-shaped and 4-arm star-shaped block copolymers based on poly(ethylene glycol) and poly (ε-caprolactone) were synthesized. Micelles of star-shaped block copolymer in an aqueous solution were then prepared by a solvent evaporation method. The critical micelle concentration and the size of the micelles were measured by the steady-state pyrene fluorescence method and dynamic light scattering, respectively. The CMC decreased in the order di-,3-arm star-shaped and 4-arm star-shaped block copolymer. The size of the micelles increased in the same order as the CMC. Theory also predicts that the formation of micelles becomes easier for 4-arm star-shaped block copolymers than for di- and 3-arm star-shaped block copolymers, which qualitatively agrees with the experiments.

KW - Block copolymers

KW - Micelles

KW - PCL

KW - PEG

KW - Star polymers

UR - http://www.scopus.com/inward/record.url?scp=4544369742&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4544369742&partnerID=8YFLogxK

U2 - 10.1002/macp.200400084

DO - 10.1002/macp.200400084

M3 - Article

AN - SCOPUS:4544369742

VL - 205

SP - 1684

EP - 1692

JO - Macromolecular Chemistry and Physics

JF - Macromolecular Chemistry and Physics

SN - 1022-1352

IS - 12

ER -