Encapsulation of Carbon Black by Miniemulsion Polymerization

Tiarks, Franca; Landfester, Katharina; Antonietti, Markus

doi:10.1002/1521-3935(20010101)202:1<51::aid-macp51>3.0.co;2-j

Cited by 191 publications

(69 citation statements)

References 9 publications

(11 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Hybrid nanoparticles are of scientific and industrial interest as they can be used for several applications-e.g., paints of high color intensity [60][61][62], electronic devices [63,64], and medical applications [65][66][67]. Hybrid nanoparticles can be prepared by miniemulsion polymerization in a two-stage process [68][69][70]: first, a nanoparticle-in-monomer suspension is emulsified in a continuous phase and then the polymerization of the filled submicron-sized monomer droplets is conducted [55].…”

Section: Preparation Of Hybrid Nanoparticlesmentioning

confidence: 99%

Extending Applications of High-Pressure Homogenization by Using Simultaneous Emulsification and Mixing (SEM)—An Overview

Gall

Runde²,

Schuchmann

2016

Processes

View full text Add to dashboard Cite

Conventional high-pressure homogenization (HPH) is widely used in the pharmaceutical, chemical, and food industries among others. In general, its aim is to produce micron or sub-micron scale emulsions with excellent product characteristics. However, its energy consumption is still very high. Additionally, several limitations and boundaries impede the usage of high-pressure homogenization for special products such as particle loaded or highly concentrated systems. This article gives an overview of approaches that have been used in order to improve the conventional high-pressure homogenization process. Emphasis is put on the 'Simultaneous Emulsification and Mixing' process that has been developed to broaden the application areas of high-pressure homogenization.

show abstract

Section: Preparation Of Hybrid Nanoparticlesmentioning

confidence: 99%

Extending Applications of High-Pressure Homogenization by Using Simultaneous Emulsification and Mixing (SEM)—An Overview

Gall

Runde²,

Schuchmann

2016

Processes

View full text Add to dashboard Cite

show abstract

“…Por exemplo, a estabilidade coloidal de QD revestidos com moléculas orgânicas, garantida em meios orgânicos pelos estabilizantes nativos na superfície, pode ser explorada para preparar nanocompósitos poliméricos por um processo de polimerização in situ por miniemulsão, na presença dos QD. Esta técnica foi estudada para uma grande variedade de materiais inorgânicos, tais como TiO 2 , 96 SiO 2 , 97 e pós de carbono negro, 98 em que as partículas são dispersas na fase orgânica, constituída pelo monómero, sem tratamento prévio da superfície. A encapsulação de diversas NP inorgânicas com propriedades hidrofóbicas por métodos de polimerização por miniemulsão in situ foi demonstrada para poli(estireno) (PS), 99,100 poli(acrilato de butilo) (PBA) 99,101 e copolímeros de poli(estireno) e poli(metacrilato de metilo) (PS/PMMA).…”

Section: Modificação Superficial De Np E Derivados Compósitosunclassified

Os nanomateriais e a descoberta de novos mundos na bancada do químico

Martins¹,

Trindade²

2012

Quím. Nova

View full text Add to dashboard Cite

Recebido em 3/10/11; aceito em 17/2/12; publicado na web em 15/6/12 NANOMATERIALS AND THE DISCOVERY OF NEW WORLDS AT THE CHEMIST'S BENCH. In recent years there has been great progress in the field of nanotechnology largely driven by research into nanomaterials. Chemistry appears in this context for its relevant role in the synthesis and surface modification of nanomaterials. This review article discusses fundamental concepts related to the synthesis and properties of inorganic nanoparticles with diverse properties. Aspects related to unique size dependent optical and magnetic properties are discussed and the chemistry involved in the preparation of nanomaterials reviewed. Fundamental aspects of the chemical modification of nanoparticles envisaging potential applications for these materials are also addressed.Keywords: nanoparticles; chemical synthesis; surface modification. INTRODUÇÃOAs últimas décadas assistiram a um interesse sem precedentes na área das Nanotecnologias e Nanociências, tratando-se atualmente de um dos domínios tecnológicos mais atrativos e de maior crescimento. A "revolução nano", comparada por muitos especialistas à revolução industrial do século XIX, promete produtos inovadores em áreas estratégicas como, por exemplo, a de energia, medicina, informação, segurança, ambiente e indústria.A palestra de Richard Feynman na reunião anual da Sociedade Americana de Física, no Instituto de Tecnologia da Califórnia (Caltech), em 1959, é um marco histórico e científico ao antecipar desenvolvimentos em Nanotecnologia, sem que este termo tenha sido utilizado na ocasião.1 Nessa palestra, intitulada There's Plenty of Room at the Bottom, referiu-se à possibilidade de manipular a matéria à escala atómica e molecular e discutiram-se consequências em termos de progresso científico nesse novo contexto. As previsões de Feynman incluíram a miniaturização de dispositivos de armazenamento de informação e o desenvolvimento de microscópios com poder de resolução ao nível atómico. Contudo, a Nanotecnologia resulta efetivamente da sedimentação de conhecimento científico em áreas diversas, e para a qual contribuíram decisivamente avanços tecnológicos recentes, nomeadamente a descoberta e o aperfeiçoamento de microscópios que permitem a caracterização de nanoestruturas, métodos computacionais mais poderosos e novas técnicas de síntese em nanomateriais.A invenção do microscópio de efeito túnel (Scanning Tunelling Microscope, STM), cuja patente é de 1980, deu a Gerd Binnig e Heinrich Rohrer o prémio Nobel da Física, em 1986. No STM é aplicada uma diferença de potencial entre a superfície da amostra e uma sonda muito fina que se aproxima da superfície do material a analisar, a uma distância atómica, originando uma corrente por efeito de túnel entre a ponta da sonda e a superfície. Uma modalidade de medição no STM faz com que a sonda seja deslocada ao longo da superfície (plano XY) de forma a varrer uma determinada área da amostra, mantendo a intensidade de corrente constante entre a ponta e a superfície. O ajuste da posição v...

show abstract

“…The dye-containing polymer latexes have been widely applied in many fields, such as coating, paint, and ink industries, [1][2][3][4][5][6] which can be prepared through emulsion polymerization [7,8] or miniemulsion polymerization [5,[9][10][11][12] in the presence of oil-soluble dyes. For example, Takasu et al incorporated copper phthalocyanine and styryl dyes into polystyrene latex particles using miniemulsion polymerization.…”

Section: Introductionmentioning

confidence: 99%

Preparation of covalently colored polymer latex through miniemulsion polymerization based on a polymerizable dye

Wang

Jin

et al. 2015

Designed Monomers and Polymers

View full text Add to dashboard Cite

A polymerizable red dye 1-(6-acrylamidohexylamino) anthraquinone (AHAQ) was synthesized and used to prepare colored polymer latexes using styrene and butyl acrylate as main monomers. Influences of the initiator and surfactant amounts, oil/aqueous phase ratio, and AHAQ content on the polymerization process, the particle size, and surface tension of the resulted latex were investigated, and the migration resistance and light fastness of the red latex films were determined. Results showed that the polymerization was carried out smoothly, and the miniemulsion polymerization mechanism was confirmed by monitoring the dimensions of oil phase before and after polymerization. The latex particle size can be adjusted by varying the surfactant amount, and when AHAQ content was 0.2-1 wt% of total monomers, the encapsulation efficiency and dye conversion could be achieved to 98.7 and 96.3%, respectively. The UV-vis spectra of AHAQ and its corresponding covalently colored polymer indicated that the maximum absorption peak was the same, meaning that the chemical structure of chromophore in AHAQ maintains unchanged after undergoing polymerization. The migration resistance and light fastness of the covalently colored latex films were much better than that of the correspondingly non-covalently colored ones.

show abstract

Encapsulation of Carbon Black by Miniemulsion Polymerization

Cited by 191 publications

References 9 publications

Extending Applications of High-Pressure Homogenization by Using Simultaneous Emulsification and Mixing (SEM)—An Overview

Extending Applications of High-Pressure Homogenization by Using Simultaneous Emulsification and Mixing (SEM)—An Overview

Os nanomateriais e a descoberta de novos mundos na bancada do químico

Preparation of covalently colored polymer latex through miniemulsion polymerization based on a polymerizable dye

Contact Info

Product

Resources

About