Results 61 to 70 of about 7,549 (220)
ABSTRACT Rare earth elements (REEs) play an irreplaceable role in modern technology and industry. However, due to the highly similar physicochemical properties among REEs, their separation remains a significant challenge. Additionally, REEs often exist in low‐concentration solutions, making efficient REE recovery an urgent task.
Miao‐Miao Huang +6 more
wiley +1 more source
Synthesis and characterization of composites with sulfonated styrene-divinylbenzene copolymer
In this work light sulfonation was applied to a styrene copolymer crosslinked with divinylbenzene (PS-co-DVB). Subsequently the product was incorporated at different concentrations into poly(vinylidene fluoride) (PVDF) and ethylene-propylene-diene (EPDM). Also, antimonic acid (HSb) was added.
S. Rodríguez, A. Linares, J. L. Acosta
openaire +1 more source
Perchloric Acid, an Effective Catalyst for Thermosetting Self‐Crosslinking Hydroxy Acrylic Resins
Perchloric acid is an effective catalyst for the crosslinking of hydroxy acrylate resins. Its action is based on the intermediate formation of alkyl perchloric esters. Transesterification gives volatile alkyl perchlorates that evaporate to give a catalyst‐free resin.
Patrick Wienefeld, Gerrit A. Luinstra
wiley +1 more source
Reticular Frameworks for Advanced Polymer Materials
Reticular frameworks (RFs) such as metal–organic frameworks, covalent organic frameworks, and hydrogen‐bonded organic frameworks offer versatile platforms for polymer materials innovation, enabling regulated polymerization, efficient macromolecular purification, and polymer functionalization.
Bohan Cheng +2 more
wiley +1 more source
Obtenção e caracterização de poliestireno expansível com morfologia casca-núcleo [PDF]
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Ciência e Engenharia de Materiais.Nas últimas décadas a literatura aberta vem registrando um aumento no número de estudos em partículas ...
Ribeiro, Luiz Fernando Belchior
core
Sequence distribution and intramolecular excimer formation in styrene-acrylonitrile copolymers
Styrene-acrylonitrile copolymers, like many other copolymers containing styrene, exhibit both normal and excimer fluorescence. We have shown that the ratio of the excimer to monomer fluorescence intensities in random styrene-acrylonitrile copolymers is ...
Pomery P.J. +4 more
core +1 more source
Neste trabalho, foram sintetizados copolímeros à base de estireno (STY), divinilbenzeno (DVB) e metacrilato de metila (MMA) com propriedades magnéticas pela técnica de polimerização em suspensão.
Flavio S. Souza +5 more
doaj
A Degradable Device for Sustainable Capillary Blood Sampling
The device features a compostable 3D‐printed storage compartment for liquid blood collection and a degradable, poly(ɛ‐caprolactone)‐coated magnesium microneedle patch hidden within a suction cup. Manual compression deploys the MNs, creating small skin punctures, and the subsequent release of compression generates the negative pressure required for ...
Nicole Zoratto +5 more
wiley +1 more source
Scanning electron microscopy study of styrene-divinylbenzene copolymers
Styrene divinylbenzene copolymers were synthesized by suspension polymerization in presence of di(2-ethylhexyl) phosphoric acid and methyl ethyl ketone as diluentes.
Coutinho, Fernanda M. B. +3 more
core
Characterization of glass fibre reinforced polyamide/acrylonitrile butadiene-styrene composite for automotive application [PDF]
Polyamide-6 (PA6), acrylonitrile-butadiene-styrene (ABS) and their blends are an important class of engineering thermoplastics that are widely used especially for automotive industries.
Rahmat, Abdul Razak +3 more
core

