Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Arnaldo, Roggero"'
Autor:
Massimo Paci, Francesco Paolo La Mantia, Ugo Pedretii, Lilia Minkova, Arnaldo Roggero, Perluigi Magagnini
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 266:59-72
Blends of poly(phenylene sulfide) and a semiflexible liquid-crystalline polymer have been prepared, in the whole range of concentration, by melt mixing. The effect of the LCP phase on the crystallization of PPS has been studied by non-isothermal and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02a27b3ef5657a82bd7183ba741149d6
https://doi.org/10.1080/10587259508033632
https://doi.org/10.1080/10587259508033632
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 32:1361-1369
The chemical modification of poly (2,6-dimethyl-1,4-phenylene oxide) (PPO) by bromination of the aromatic ring, followed by displacement of bromine with substituted acetylenes, has been investigated. This pathway leads to a series of novel copolymers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5c81f56c1f491a380fe9d08dd464599
https://doi.org/10.1002/pola.1994.080320717
https://doi.org/10.1002/pola.1994.080320717
Publikováno v:
Polymer International. 30:93-100
Poly(4-methylstyrene)-graft-poly(ethylene oxide)s were prepared via polymerisation of ethylene oxide on to poly(4-methylstyrene)s function alised with hydroxyl groups. In this way, many «comb-like» polymers having different hydrophobic backbone len
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f2f00b8504a2bf6d2efa41e9bcc916b
https://doi.org/10.1002/pi.4990300114
https://doi.org/10.1002/pi.4990300114
Publikováno v:
Journal of Power Sources. 66:181
A solid polymeric electrolytic membrane comprising a solution of an ion compound in a cross-linked polyether including a liquid plasticizer obtained by: a) copolymerizing a vinyl ether of the formula: R--(O--CH.sub.2 --CH.sub.2 --).sub.n --O--CH=CH.s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3822bd4e3a906cd81bd4fb0437bd6a1
https://doi.org/10.1016/s0378-7753(97)89707-8
https://doi.org/10.1016/s0378-7753(97)89707-8
Autor:
Arnaldo Roggero, C. Corno
Publikováno v:
European Polymer Journal. 12:159-164
Ethylene sulphide-isobutylene sulphide and propylene sulphide-isobutylene sulphide copolymers have been prepared using anionic catalysts and investigated by 13C-{1H} NMR spectroscopy. The carbon-13 NMR spectra are assigned in terms of diad and triad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c93c751b05188cf36ce65ea3c9115f57
https://doi.org/10.1016/0014-3057(76)90046-x
https://doi.org/10.1016/0014-3057(76)90046-x
Publikováno v:
European Polymer Journal. 10:525-528
Ethylene sulphide-propylene sulphide copolymers, prepared with anionic type catalysts, have been investigated by 13C NMR. The peaks have been assigned both in terms of diad and triad monomer sequences and in terms of tacticity. It has been shown that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30bfa7a3599e62d6f72411abac68b474
https://doi.org/10.1016/0014-3057(74)90155-4
https://doi.org/10.1016/0014-3057(74)90155-4
Publikováno v:
Angewandte Makromolekulare Chemie. 79:185-192
Low molecular weight 1,2-polybutadienes, having an 1,2 content of 78%, were obtained by a catalyst system based on sodium stilbene in THF. Effect of solvent transfer, catalyst concentration, rate of monomer feeding and temperature are reported. Polyb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::373fd28076bdde47c243da1fa1a99633
https://doi.org/10.1002/apmc.1979.050790116
https://doi.org/10.1002/apmc.1979.050790116
Publikováno v:
European Polymer Journal. 13:77-82
The microstructure (in particular the distribution of the monomeric units) has been determined by means of 13 C NMR for the three copolymers ethylene sulphide-propylene sulphide (ES-PS), ethylene sulphide-isobutylene sulphide (ES-IBS) and propylene s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95d6656b706162bb144a0e1bfbc37382
https://doi.org/10.1016/0014-3057(77)90141-0
https://doi.org/10.1016/0014-3057(77)90141-0
Publikováno v:
Polymer. 20:116-121
The structure of liquid polybutadienes prepared by anionic catalysts with toluene as transfer agent was studied by 13C n.m.r. and information concerning initiation, propagation and transfer mechanism was obtained. A complete characterization of the f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37ba12ebf95956d63eebc7c72dec1a27
https://doi.org/10.1016/0032-3861(79)90054-5
https://doi.org/10.1016/0032-3861(79)90054-5
Publikováno v:
Die Makromolekulare Chemie. 187:2957-2967
The morphology of ABA triblock copolymers [A: polystyrene, poly(α-methylstyrene); B: polybutadine] containing unbonded A′ segments (free A chains) was studied using small-angle X-ray scattering and transmission electron microscopy. Experimental re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7a355e9642e30f1bbfd40d0134a98ec
https://doi.org/10.1002/macp.1986.021871220
https://doi.org/10.1002/macp.1986.021871220