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 2024-01-20T16:35:21Z 2024-01-20T16:35:21Z 2021-09-04 2011-07 1598-5032 https://pubs.kist.re.kr/handle/201004/130233 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 similar to 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. English POLYMER SOC KOREA IRON-OXIDE NANOPARTICLES N-SUBSTITUTED MALEIMIDE MAGNETIC NANOPARTICLES GABRIEL SYNTHESIS ANIONIC-POLYMERIZATION ING-MANSKE HYDROLYSIS COMPLEXES Synthesis of PEO-based block copolymers bearing cyclic hydrazide or carboxylic acid moieties and their applications as stabilizers for Fe3O4 nanoparticles Article 10.1007/s13233-011-0716-0 1 MACROMOLECULAR RESEARCH, v.19, no.7, pp.716 - 721 MACROMOLECULAR RESEARCH 19 7 716 721 scie scopus kci ART001571796 000292274200011 2-s2.0-79960043318 Polymer Science Polymer Science Article IRON-OXIDE NANOPARTICLES N-SUBSTITUTED MALEIMIDE MAGNETIC NANOPARTICLES GABRIEL SYNTHESIS ANIONIC-POLYMERIZATION ING-MANSKE HYDROLYSIS COMPLEXES anionic block copolymerization deimidation poly(ethylene oxide-b-maleic acid) poly(ethylene oxide-b-maleic hydrazide) iron oxide nanoparticles