Nanostructured polymer blends: Synthesis and structure

Todd M. Alam, Joshua U. Otaigbe, Dave Rhoades, Gregory P. Holland, Brian R. Cherry, Paul G. Kotula

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


Nanostructured polymer blends prepared via anionic ring opening polymerizations of cyclic monomers in the presence of a pre-made polymer melt exhibit a number of special properties over traditional polymer blends and homopolymers. Here, we report on a simple and versatile method of in situ polymerization of macrocyclic carbonates in the presence of a maleic anhydride polypropylene (mPP) matrix and a surface-active compatibilizer (i.e. PC grafted onto a mPP backbone generated in situ) to yield a micro- and nanostructured polymer blends consisting of a polycarbonate (PC) minor phase, and a polypropylene (PP) major phase. By varying the processing conditions and concentration of the macrocyclic carbonate it was possible to reduce the size of the PC dispersions to an average minor diameter of 150 nm. NMR and TEM characterizations indicate that the PC dispersions do not influence crystal content in the PP phase. Overall, the results point to a simple strategy and versatile route to new polymeric materials with enhanced benefits.

Original languageEnglish (US)
Pages (from-to)12468-12479
Number of pages12
Issue number26
StatePublished - Dec 12 2005
Externally publishedYes


  • In situ polymerization
  • Morphology and dynamics
  • Nanostructured polymer blends

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry


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