Results 21 to 30 of about 128,173 (288)

Encapsulation of polyaniline in zeolite Y and mordenite [PDF]

open access: yes, 1989
Synthetic strategies to encapsulate polyaniline in the crystalline channel system of faujasite (three-dimensional) and mordenite (one-dimensional) have been explored.
Bein, Thomas, Enzel, Patricia
core   +1 more source

Comparison of the Porous Structure of Polymeric Beads Obtained by Modified Suspension and Multi-Step Swelling Polymerizations

open access: yesAdsorption Science & Technology, 2006
The porous structures of the polymeric beads obtained by modified suspension and multi-step swelling polymerizations were studied. A porous styrene–divinylbenzene copolymer (ST–DVB) was synthesized in the modified suspension polymerization.
Barbara Gawdzik   +2 more
doaj   +1 more source

Polypeptide gels incorporating the exotic functional aromatic amino acid 4-amino-L-phenylalanine [PDF]

open access: yes, 2018
High-molecular-weight polypeptides with functional aromatic side chains, poly(4-amino-l-phenylalanine), were prepared by the metal-initiated polymerization of the Nα-carboxyanhydride of the corresponding amino acid, which is a microbial derivative of ...
Ali, Mohammad Asif   +4 more
core   +1 more source

Modelagem da polimerização simultânea de estireno em suspensão e emulsão Modeling styrene simultaneous suspension and emulsion polymerization systems

open access: yesPolímeros, 2004
Apesar dos processos de polimerização em suspensão e emulsão serem processos heterogêneos, cada um origina características peculiares para a distribuição de tamanho de partículas, distribuição de pesos moleculares, taxa de nucleação das partículas de ...
Marcelo K. Lenzi   +2 more
doaj   +1 more source

Mitochondrial proteomics: analysis of a whole mitochondrial extract with two-dimensional electrophoresis [PDF]

open access: yes, 2008
Mitochondria are complex organelles, and their proteomics analysis requires a combination of techniques. The emphasis in this chapter is made first on mitochondria preparation from cultured mammalian cells, then on the separation of the mitochondrial ...
A. Gorg   +16 more
core   +6 more sources

Uma revisão sobre os processos de polimerização em suspensão A review on suspension polymerization processes

open access: yesPolímeros, 2007
Inúmeros processos podem ser utilizados para produção de materiais poliméricos. Cada processo apresenta características peculiares, que permitem produzir resinas com as mais variadas propriedades, visando a diferentes aplicações do material polimérico ...
Fabricio Machado   +2 more
doaj   +1 more source

Nanocomposites and methods for synthesis and use thereof [PDF]

open access: yes, 2009
Nanocomposite compositions and methods of synthesis of the compositions are described. In particular, liquid crystal-functionalized nanoparticles, liquid crystal-templated nanoparticles, nanocomposite compositions including the nanoparticles, and ...
Furman, Benjamin R.   +3 more
core   +1 more source

The Dispersion Composition of Polymethylmethacrylate Suspensions and Molecular Weights of Polymers Obtained by Suspension Polymerization in the Presence of Acrylic Copolymers as Surfactants

open access: yesТонкие химические технологии, 2019
The dispersion composition of polymer suspensions and molecular weights of polymers obtained by suspension polymerization of MMA in the presence of polymer surfactants – methylmethacrylate and methacrylic acid copolymers – were studied.
I. A. Gritskova   +7 more
doaj   +1 more source

TiO2-doped resorcinol–formaldehyde (RF) polymer and carbon gels with photocatalytic activity [PDF]

open access: yes, 2013
Resorcinol-formaldehyde (RF) polymer gels offer a relatively easy and versatile route for incorporating metals into a carbon aerogel matrix. The hybrid materials thus obtained are ideal candidates for applications involving enhanced adsorption or ...
Czakkel, Orsolya   +3 more
core   +3 more sources

Síntese e caracterização de esferas monodispersas de látex e sua utilização no preparo de filmes de cristais coloidais tridimensionais.

open access: yesEclética Química, 2018
Polystyrene latex spheres were obtained by free-emulsifier polymerization of styrene. Suspension was characterized by Photon Correlation Spectroscopy (PCS) and Transmission Electron Microscopy (TEM) and were observed to be monodisperse with sizes around ...
Mateus Geraldo Schiavetto   +3 more
doaj   +1 more source

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