Isotactic and Syndiotactic Alternating Ethylene/Propylene Copolymers Obtained Through Non-Catalytic Hydrogenation of Highly Stereoregular cis-1,4 Poly(1,3-diene)s

The homogeneous non-catalytic hydrogenation of cis-1,4 poly(isoprene), isotactic cis-1,4 poly(1,3-pentadiene) and syndiotactic cis-1,4 poly(1,3-pentadiene) with diimide, formed by thermal decomposition of para-toluenesulfonylhydrazide, is examined. Perfectly alternating ethylene/propylene copolymers...

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Autores principales: Ricci, Giovanni, Boccia, Antonella Caterina, Leone, Giuseppe, Pierro, Ivana, Zanchin, Giorgia, Scoti, Miriam, Auriemma, Finizia, De Rosa, Claudio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6154095/
https://www.ncbi.nlm.nih.gov/pubmed/28481242
http://dx.doi.org/10.3390/molecules22050755
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author Ricci, Giovanni
Boccia, Antonella Caterina
Leone, Giuseppe
Pierro, Ivana
Zanchin, Giorgia
Scoti, Miriam
Auriemma, Finizia
De Rosa, Claudio
author_facet Ricci, Giovanni
Boccia, Antonella Caterina
Leone, Giuseppe
Pierro, Ivana
Zanchin, Giorgia
Scoti, Miriam
Auriemma, Finizia
De Rosa, Claudio
author_sort Ricci, Giovanni
collection PubMed
description The homogeneous non-catalytic hydrogenation of cis-1,4 poly(isoprene), isotactic cis-1,4 poly(1,3-pentadiene) and syndiotactic cis-1,4 poly(1,3-pentadiene) with diimide, formed by thermal decomposition of para-toluenesulfonylhydrazide, is examined. Perfectly alternating ethylene/propylene copolymers having different tacticity (i.e., isotactic and syndiotactic), which are difficult to synthesize by stereospecific copolymerization of the corresponding monomers, are obtained. Both isotactic and syndiotactic alternating ethylene/propylene copolymers are amorphous, with very low glass transition temperatures.
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spelling pubmed-61540952018-11-13 Isotactic and Syndiotactic Alternating Ethylene/Propylene Copolymers Obtained Through Non-Catalytic Hydrogenation of Highly Stereoregular cis-1,4 Poly(1,3-diene)s Ricci, Giovanni Boccia, Antonella Caterina Leone, Giuseppe Pierro, Ivana Zanchin, Giorgia Scoti, Miriam Auriemma, Finizia De Rosa, Claudio Molecules Article The homogeneous non-catalytic hydrogenation of cis-1,4 poly(isoprene), isotactic cis-1,4 poly(1,3-pentadiene) and syndiotactic cis-1,4 poly(1,3-pentadiene) with diimide, formed by thermal decomposition of para-toluenesulfonylhydrazide, is examined. Perfectly alternating ethylene/propylene copolymers having different tacticity (i.e., isotactic and syndiotactic), which are difficult to synthesize by stereospecific copolymerization of the corresponding monomers, are obtained. Both isotactic and syndiotactic alternating ethylene/propylene copolymers are amorphous, with very low glass transition temperatures. MDPI 2017-05-06 /pmc/articles/PMC6154095/ /pubmed/28481242 http://dx.doi.org/10.3390/molecules22050755 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ricci, Giovanni
Boccia, Antonella Caterina
Leone, Giuseppe
Pierro, Ivana
Zanchin, Giorgia
Scoti, Miriam
Auriemma, Finizia
De Rosa, Claudio
Isotactic and Syndiotactic Alternating Ethylene/Propylene Copolymers Obtained Through Non-Catalytic Hydrogenation of Highly Stereoregular cis-1,4 Poly(1,3-diene)s
title Isotactic and Syndiotactic Alternating Ethylene/Propylene Copolymers Obtained Through Non-Catalytic Hydrogenation of Highly Stereoregular cis-1,4 Poly(1,3-diene)s
title_full Isotactic and Syndiotactic Alternating Ethylene/Propylene Copolymers Obtained Through Non-Catalytic Hydrogenation of Highly Stereoregular cis-1,4 Poly(1,3-diene)s
title_fullStr Isotactic and Syndiotactic Alternating Ethylene/Propylene Copolymers Obtained Through Non-Catalytic Hydrogenation of Highly Stereoregular cis-1,4 Poly(1,3-diene)s
title_full_unstemmed Isotactic and Syndiotactic Alternating Ethylene/Propylene Copolymers Obtained Through Non-Catalytic Hydrogenation of Highly Stereoregular cis-1,4 Poly(1,3-diene)s
title_short Isotactic and Syndiotactic Alternating Ethylene/Propylene Copolymers Obtained Through Non-Catalytic Hydrogenation of Highly Stereoregular cis-1,4 Poly(1,3-diene)s
title_sort isotactic and syndiotactic alternating ethylene/propylene copolymers obtained through non-catalytic hydrogenation of highly stereoregular cis-1,4 poly(1,3-diene)s
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6154095/
https://www.ncbi.nlm.nih.gov/pubmed/28481242
http://dx.doi.org/10.3390/molecules22050755
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