Amphiphilic diblock copolyphosphazene

Synthesis and micellar characteristics in aqueous phase

Chulhee Kim, Youngkyu Chang, Sang Cheon Lee, Harry R. Allcock, Scott D. Reeves

Research output: Contribution to journalConference article

4 Citations (Scopus)

Abstract

The amphiphilic diblock copolymer (MEEP-Ph/MEEP) with [N = P(OCH2CH2OCH2CH2OCH3)2]n (MEEP) as a hydrophilic block and [N = PPh(OCH2CH2OCH2CH2OCH3)]m (Ph/MEEP) as a hydrophobic block was synthesized through a controlled cationic polymerization of phosphoranimine. MEEP-Ph/MEEP self-associated to form micelles with a critical micelle concentration of 80 mg/L in an aqueous solution. The steady-state fluorescence anisotropy value of DPH in a block copolymer solution was 0.237. The analysis of the fluorescence lifetime of DPH in the MEEP-Ph/MEEP solution indicated that the micellar core region was fairly polar and consisted of two hydrophobic domains with different polarity.

Original languageEnglish (US)
Pages (from-to)609-610
Number of pages2
JournalAmerican Chemical Society, Polymer Preprints, Division of Polymer Chemistry
Volume41
Issue number1
StatePublished - Mar 1 2000
EventThe San Francisco Meeting - San Francisco, CA, USA
Duration: Mar 26 2000Mar 31 2000

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Block copolymers
Fluorescence
Cationic polymerization
Critical micelle concentration
Micelles
Anisotropy

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics

Cite this

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title = "Amphiphilic diblock copolyphosphazene: Synthesis and micellar characteristics in aqueous phase",
abstract = "The amphiphilic diblock copolymer (MEEP-Ph/MEEP) with [N = P(OCH2CH2OCH2CH2OCH3)2]n (MEEP) as a hydrophilic block and [N = PPh(OCH2CH2OCH2CH2OCH3)]m (Ph/MEEP) as a hydrophobic block was synthesized through a controlled cationic polymerization of phosphoranimine. MEEP-Ph/MEEP self-associated to form micelles with a critical micelle concentration of 80 mg/L in an aqueous solution. The steady-state fluorescence anisotropy value of DPH in a block copolymer solution was 0.237. The analysis of the fluorescence lifetime of DPH in the MEEP-Ph/MEEP solution indicated that the micellar core region was fairly polar and consisted of two hydrophobic domains with different polarity.",
author = "Chulhee Kim and Youngkyu Chang and Lee, {Sang Cheon} and Allcock, {Harry R.} and Reeves, {Scott D.}",
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Amphiphilic diblock copolyphosphazene : Synthesis and micellar characteristics in aqueous phase. / Kim, Chulhee; Chang, Youngkyu; Lee, Sang Cheon; Allcock, Harry R.; Reeves, Scott D.

In: American Chemical Society, Polymer Preprints, Division of Polymer Chemistry, Vol. 41, No. 1, 01.03.2000, p. 609-610.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Amphiphilic diblock copolyphosphazene

T2 - Synthesis and micellar characteristics in aqueous phase

AU - Kim, Chulhee

AU - Chang, Youngkyu

AU - Lee, Sang Cheon

AU - Allcock, Harry R.

AU - Reeves, Scott D.

PY - 2000/3/1

Y1 - 2000/3/1

N2 - The amphiphilic diblock copolymer (MEEP-Ph/MEEP) with [N = P(OCH2CH2OCH2CH2OCH3)2]n (MEEP) as a hydrophilic block and [N = PPh(OCH2CH2OCH2CH2OCH3)]m (Ph/MEEP) as a hydrophobic block was synthesized through a controlled cationic polymerization of phosphoranimine. MEEP-Ph/MEEP self-associated to form micelles with a critical micelle concentration of 80 mg/L in an aqueous solution. The steady-state fluorescence anisotropy value of DPH in a block copolymer solution was 0.237. The analysis of the fluorescence lifetime of DPH in the MEEP-Ph/MEEP solution indicated that the micellar core region was fairly polar and consisted of two hydrophobic domains with different polarity.

AB - The amphiphilic diblock copolymer (MEEP-Ph/MEEP) with [N = P(OCH2CH2OCH2CH2OCH3)2]n (MEEP) as a hydrophilic block and [N = PPh(OCH2CH2OCH2CH2OCH3)]m (Ph/MEEP) as a hydrophobic block was synthesized through a controlled cationic polymerization of phosphoranimine. MEEP-Ph/MEEP self-associated to form micelles with a critical micelle concentration of 80 mg/L in an aqueous solution. The steady-state fluorescence anisotropy value of DPH in a block copolymer solution was 0.237. The analysis of the fluorescence lifetime of DPH in the MEEP-Ph/MEEP solution indicated that the micellar core region was fairly polar and consisted of two hydrophobic domains with different polarity.

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JO - American Chemical Society, Polymer Preprints, Division of Polymer Chemistry

JF - American Chemical Society, Polymer Preprints, Division of Polymer Chemistry

SN - 0032-3934

IS - 1

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