Results 61 to 70 of about 128,173 (288)

Synthesis and characterization of Supeparamagnetics Microspheres (PMMA) via suspension polymerization

Semina: Ciências Exatas e Tecnológicas, 2014
Magnetics nanoparticles (NPMs) has found many applications in biomedical and technological areas. The objective of this work is the preparation and characterization of PMMA microspheres containing NPMs coated with oleic acid (NPMs-AO).
Paulo Emilio Feuser, Marcio Nele de Souza   +1 more
doaj   +1 more source

Straightforward synthesis of functionalized cyclic polymers in high yield via RAFT and thiolactone-disulfide chemistry [PDF]

, 2013
An efficient synthetic pathway toward cyclic polymers based on the combination of thiolactone and disulfide chemistry has been developed. First, heterotelechelic linear polystyrene (PS) containing an alpha-thiolactone (TLa) and an omega-dithiobenzoate ...
Baba, Eisuke, Du Prez, Filip, Espeel, Pieter, Stamenović, Milan M., Tezuka, Yasuyuki, Yamamoto, Takuya   +5 more
core   +1 more source

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

Síntese e caracterização de beads acrílicos preparados por polimerização em suspensão visando aplicação como excipiente farmacêutico para compressão direta

Química Nova, 2012
One of the difficulties reported for the suspension polymerization is control the size and granulometry of beads. The purpose of this work was to evaluate the use of cellulose nanowhiskers and mesoporous silica as stabilizers to reduce the size and the ...
Janaina Cecília Oliveira Villanova, Tadeu Henrique Lima, Patrícia Santiago Patrício, Fabiano Vargas Pereira, Eliane Ayres   +4 more
doaj   +1 more source

On the path to a new generation of cement-based composites through the use of lignocellulosic micro/nanofibers [PDF]

, 2019
Due to its high biocompatibility, bio-degradability, and low cost, cellulose finds application in disparate areas of research. Here we focus our attention on the potential applications of cellulose nanofiber in cement-basedmaterials for the building ...
Chamorro Trenado, Miquel Ángel, Claramunt Blanes, Josep, Delgado Aguilar, Marc, Llorens Sulivera, Joan, Mutjé Pujol, Pere, Pareta Marjaneda, Maria Mercè, Reixach, Rafel, Tarrés Farré, Joaquim Agustí   +7 more
core   +2 more sources

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

Porous Copolymer Resins: Tuning Pore Structure and Surface Area with Non Reactive Porogens

Nanomaterials, 2012
In this review, the preparation of porous copolymer resin (PCR) materials via suspension polymerization with variable properties are described by tuning the polymerization reaction, using solvents which act as porogens, to yield microporous, mesoporous ...
Lee D. Wilson, Mohamed H. Mohamed
doaj   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

Study on the thermal stability of Polystyryl surfactants and its modified clay nanocomposites [PDF]

, 2004
Five oligomeric styrene surfactants, N,N,N-trimethylpolystyrylammonium, N,N-dimethyl-N-benzylpolystyrylammonium, N,N-dimethyl-N-hexadecylpolystyrylammonium, 1,2-dimethyl-3-polystyrylimidazolium, and triphenylpolystyrylphosphonium chlorides were ...
Jiang, David D., Su, Shengpei, Wilkie, Charles A.   +2 more
core   +1 more source

Graphene-based dental adhesive with anti-biofilm activity [PDF]

, 2017
BACKGROUND: Secondary caries are considered the main cause of dental restoration failure. In this context, anti-biofilm and bactericidal properties are desired in dental materials against pathogens such as Streptococcus mutans.
Bossù, Maurizio, Bregnocchi, Agnese, Cavallini, Domenico, De Angelis, Francesca, De Bellis, Giovanni, Ierardo, Gaetano, Marra, Fabrizio, Polimeni, Antonella, Sarto, Maria Sabrina, Uccelletti, Daniela, Zanni, Elena   +10 more
core   +1 more source