Synthesis of PS-b-P2VP di-block copolymer particles with internal structure via simple reprecipitation method

Choong Sun Lim, Jin Hyuck Heo, Myung Sang You, Sang Hyuk Im, Kyu Jung Chae

Research output: Contribution to journalArticle

5 Citations (Scopus)


The polystyrene-block-poly-2-vinylpyridine (PS-b-P2VP) di-block copolymer nanoparticles with onionlike internal structure have been synthesized by a simple reprecipitation method under stirring. The internal structures of the di-block copolymer nanoparticles were dependent on kinetic process in the reprecipitation method such as morphology quenching. Relatively quick reprecipitation conditions produced transient morphologies such as random-onion core-shell or random/cylindrical internal structure, while the slow reprecipitation conditions yielded the onion-like internal morphology. By adjusting the combination of common solvent and poor solvent, we could control the internal morphology of d-BCP nanoparticles in the simple reprecipitation method. In addition, we could synthesize porous titanium oxide nanoparticles by templating the d-BCP nanoparticles with internal structure. [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)324-328
Number of pages5
JournalMacromolecular Research
Issue number3
Publication statusPublished - 2014 Mar 1
Externally publishedYes



  • internal structure
  • onion-like
  • porous titanium oxide
  • PS-b-P2VP
  • reprecipitation

ASJC Scopus subject areas

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

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