Synthesis of PEO-based block copolymers bearing cyclic hydrazide or carboxylic acid moieties and their applications as stabilizers for Fe 3O4 nanoparticles

Jinheung Kim, Sangmi Lee, Joo Hyeon Nam, Young Jun Cho, Joohoon Kim, Jae Yeol Lee, Ho Jung Kang, Sehoon Kim, Hoon Tae Kim, Heung Mok Park, Jungahn Kim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In this paper, a useful synthetic method for poly(ethylene oxide)-based block copolymers and their applications for preparation of iron oxide nanoparticles were introduced. Poly(ethylene oxide-b-N-phenylmaleimide) was first synthesized by anionic block copolymerization of ethylene oxide and N-phenylmaleimide (N-PMI) using mixed alkali metal alkoxides via the sequential monomer addition technique in a mixture of benzene dimethylsulfoxide (DMSO)/tetrahydrofuran (THF) (30/5/6 ∼20, v/v/v) at room temperature. Reductive deimidation of the resulting block copolymers under different reaction conditions using hydrazine monohydrate led to the formation of the corresponding water-soluble poly(ethylene oxide-b-maleic hydrazide) under acidic conditions and poly(ethylene oxideb-maleic acid) under basic conditions. Both were found to be very efficient stabilizers to prepare superparamagnetic iron oxide nanoparticles.

Original languageEnglish
Pages (from-to)716-721
Number of pages6
JournalMacromolecular Research
Volume19
Issue number7
DOIs
Publication statusPublished - 2011 Jul 1
Externally publishedYes

Fingerprint

Bearings (structural)
Carboxylic Acids
Polyethylene oxides
Carboxylic acids
Block copolymers
hydrazine
Nanoparticles
Iron oxides
Maleic Hydrazide
Ethylene
Alkali Metals
Ethylene Oxide
Hydrazine
Alkali metals
Dimethyl Sulfoxide
Benzene
Copolymerization
Monomers
Oxides
Acids

Keywords

  • anionic block copolymerization
  • deimidation
  • iron oxide nanoparticles
  • poly(ethylene oxide-b-maleic acid)
  • poly(ethylene oxide-b-maleic hydrazide)

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Synthesis of PEO-based block copolymers bearing cyclic hydrazide or carboxylic acid moieties and their applications as stabilizers for Fe 3O4 nanoparticles. / Kim, Jinheung; Lee, Sangmi; Nam, Joo Hyeon; Cho, Young Jun; Kim, Joohoon; Lee, Jae Yeol; Kang, Ho Jung; Kim, Sehoon; Kim, Hoon Tae; Park, Heung Mok; Kim, Jungahn.

In: Macromolecular Research, Vol. 19, No. 7, 01.07.2011, p. 716-721.

Research output: Contribution to journalArticle

Kim, Jinheung ; Lee, Sangmi ; Nam, Joo Hyeon ; Cho, Young Jun ; Kim, Joohoon ; Lee, Jae Yeol ; Kang, Ho Jung ; Kim, Sehoon ; Kim, Hoon Tae ; Park, Heung Mok ; Kim, Jungahn. / Synthesis of PEO-based block copolymers bearing cyclic hydrazide or carboxylic acid moieties and their applications as stabilizers for Fe 3O4 nanoparticles. In: Macromolecular Research. 2011 ; Vol. 19, No. 7. pp. 716-721.
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