Journal ArticleDOI
Morphological characterization of poly(phenylacetylene) nanospheres prepared by homogeneous and heterogeneous catalysis
Piero Mastrorilli,Cosimo Francesco Nobile,Gian Paolo Suranna,Anna Bonamartini Corradi,Cristina Leonelli,Paolo Veronesi +5 more
TLDR
In this paper, the effects of the reaction medium, presence of a cocatalyst and the type of catalysis (homogeneous or heterogeneous) on the morphology of the polymers obtained have been studied and discussed.Abstract:
Scanning electron microscopy characterization of the materials obtained by homogeneous and heterogeneous catalytic polymerization of phenylacetylene is described. The catalysts used are β-dioxygenato rhodium(I) complexes. The effects of the reaction medium, presence of a cocatalyst and the type of catalysis (homogeneous or heterogeneous) on the morphology of the polymers obtained have been studied and discussed. Using a supported complex at 0 °C, nanoparticles with a diameter distribution as narrow as 30 to 70 nm were obtained. Polymer nanopowders were found to be unaffected by ageing. Copyright © 2003 John Wiley & Sons, Ltd.read more
Citations
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Supported catalysts from polymerizable transition metal complexes
TL;DR: In this paper, a review of the last 12 years of research on the synthesis and use of heterogeneous catalysts obtained by co-polymerization of suitable metal containing monomers (MCM) is presented.
Journal ArticleDOI
Microgranules and Nanoparticles on Their Surfaces
TL;DR: In this paper, it is shown that attaching nanoparticles to the surface of microgranules alters some of the most important properties of the matrix and offers the possibility of creating composite materials with unique physical properties and reactivity.
Journal ArticleDOI
Control synthesis of semiconductor ZnSe quasi-nanospheres by reverse micelles soft template
TL;DR: In this paper, the reaction between Zn2+ and Se2− under the induction of reverse micelles soft template has been successfully prepared by the reaction of ZnSe quasi-nanospheres.
Journal ArticleDOI
A recyclable nanoparticle-supported rhodium catalyst for hydrogenation reactions.
TL;DR: Catalytic hydrogenation under mild conditions of olefins, unsaturated aldeydes and ketones, nitriles and nitroarenes was investigated, using a supported rhodium complex obtained by copolymerization of Rh(cod)(aaema) with acrylamides.
Journal ArticleDOI
[Rh(cycloolefin)(acac)] complexes as catalysts of polymerization of aryl- and alkylacetylenes: Influence of cycloolefin ligand and reaction conditions
TL;DR: In this article, the authors investigated the catalysts of poly(phenylacetylene) polymerization in both coordinating (THF) and non-coordinating (CH 2 Cl 2 ) solvents.
References
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Semiconducting Polymer Nanospheres in Aqueous Dispersion Prepared by a Miniemulsion Process
Katharina Landfester,Rivelino Montenegro,Ullrich Scherf,R. Güntner,Udom Asawapirom,Satish Patil,Dieter Neher,Thomas Kietzke +7 more
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Mechanisms by which cyclodextrins modify drug release from polymeric drug delivery systems
TL;DR: This paper reviews the incorporation of various cyclodextrins into polymeric formulations and the mechanisms by whichcyclodextrin/polymer formulations act to modify drug release are considered.
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Ultrafast holographic nanopatterning of biocatalytically formed silica
Lawrence L. Brott,Rajesh R. Naik,David J. Pikas,Sean Kirkpatrick,D.W. Tomlin,Patrick W. Whitlock,Patrick W. Whitlock,Stephen J. Clarson,Morley O. Stone +8 more
TL;DR: A method for creating a hybrid organic/inorganic ordered nanostructure of silica spheres through the incorporation of a polycationic peptide into a polymer hologram created by two-photon-induced photopolymerization is described.
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Taxol-loaded block copolymer nanospheres composed of methoxy poly(ethylene glycol) and poly(ε-caprolactone) as novel anticancer drug carriers
So Yeon Kim,Young Moo Lee +1 more
TL;DR: Considering the extremely lipophilic characteristics of taxol, this MePEG/PCL, nanosphere system with high taxol loading content and suspended properties in water could be useful for the delivery ofTaxol.
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Lidocaine-loaded biodegradable nanospheres. I. Optimization of the drug incorporation into the polymer matrix
TL;DR: It seems that the drug release rate is related to the state (crystallized or dispersed) of the drug incorporated in the polymer matrix.