Results 81 to 90 of about 133,028 (189)

Obtenção e caracterização de poliestireno expansível com morfologia casca-núcleo [PDF]

open access: yes, 2012
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
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Colymers based on styrene and divinylbenzene synthesized in the presence of DEHPA-I: structural characterization

open access: yes, 1995
Styrene-divinylbenzene copolymers were synthetized by suspension polymerization in the presence of –diethylhexylphosphoric acid (DEPHA) and methyl ethyl ketone (MEK) as diluents for the monometers. The influence of DEPHA/MEK ratio end dilution degree on
Coutinho, Fernanda M. B.   +2 more
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The effect of partial exchange of sulphonated macroporous styrene-divinylbenzene copolymers for different ions on their catalytic activity

open access: yes, 1981
The catalytic activity of sulphonated macroporous styrene-divinylbenzene copolymers, the exchange capacity of which was neutralized from 30, 50 and 80% by Fe(III) ions and from 30% by Na ions and that of Wofatit Y-37 ion exchanger neutralized from 10% of
Svatomír Kmošták, Karel Setínek
core   +1 more source

Sequence distribution and intramolecular excimer formation in styrene-acrylonitrile copolymers

open access: yes, 1982
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

Cross-Linked Polypropylene Prepared by PP Copolymers Containing Flexible Styrene Groups

open access: yes, 2016
This paper discusses an effective method to prepare cross-linked isotactic polypropylene (PP-X) with high purity (almost 100% gel content and no contamination) and high melting temperature and crystallinity.
Wentian Lin (2370103)   +3 more
core   +1 more source

Poly(styrene-Divinylbenzene) Microspheres Prepared by Seed Swelling Polymerization in the Presence of Tung Oil Methyl Esters

open access: yes, 2011
Poly(styrene-divinylbenzene) microspheres were prepared by seed swelling polymerization in the presence of tung oil methyl esters. First, the core monodisperse polystyrene microspheres were prepared by a dispersion polymerization method.
Fu Qiang Jin   +4 more
core   +1 more source

Gas-solid retention volumes of organic compounds on styrene-divinylbenzene and ethylvinylbenzene-divinylbenzene co-polymer sorbent beads

open access: yes, 1996
Gas-solid retention volumes of organic compounds on styrene-divinylbenzene and ethylvinylbenzene-divinylbenzene co-polymer sorbent ...
LM Isabelle (18244837)   +4 more
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Porous, functional, poly(styrene-co-divinylbenzene) monoliths by RAFT polymerization

open access: yes, 2014
Herein we provide the first report of a new method for the preparation of porous functional poly(styrene-co-divinylbenzene) monoliths by use of reversible addition–fragmentation chain transfer (RAFT) polymerization.
KJ Barlow (nee Tan) (15886826)   +6 more
core  

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