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Polyethylene-like macrolactone-based polyesters: Rheological, thermal and barrier properties
Natl Res Council Italy, IPCB, I-23900 Lecce, Italy..
Univ Salerno, Dipartimento Ingn Ind, Via Giovanni Paolo II 132, I-84084 Fisciano, SA, Italy..
Univ Salerno, Dipartimento Ingn Ind, Via Giovanni Paolo II 132, I-84084 Fisciano, SA, Italy..
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology. Univ Salerno, Dipartimento Chim & Biol A Zambelli, Via Giovanni Paolo II 132, I-84084 Fisciano, SA, Italy.;KTH Royal Inst Technol, Dept Fibre & Polymer Technol, S-11428 Stockholm, Sweden..
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2018 (English)In: Materials Today Communications, ISSN 2352-4928, Vol. 17, p. 380-390Article in journal (Refereed) Published
Abstract [en]

Linear aliphatic poly(ester)s are receiving increasing interest due to their properties comparable to that of common polyethylene. In this work, unsaturated macrolactone omega-6-hexadecenlactone (6HDL) is used for the preparation of long-methylene chain aliphatic polyesters by metal-catalyzed ring-opening polymerization (ROP). Block and random copolymer of e-caprolactone (CL) are then synthetized. The microstructures of these polyesters are characterized by H-1 and C-13 NMR. Their rheological, thermal and barrier properties are evaluated and discussed. For comparison purposes, the properties of the relative homopolymers are also determined. Results show that the properties of these polymers differ depending on the main chain structure. In particular, the viscoelastic behavior of the copolymer sample shows an order-disorder transition in the temperature range of 75-85 degrees C. Thermogravimetric analysis and barrier properties show that the copolymers have a resistance to the diffusion of gases and vapors intermediate between that of the parent homopolymers.

Place, publisher, year, edition, pages
ELSEVIER SCIENCE BV , 2018. Vol. 17, p. 380-390
Keywords [en]
Polyethylene-like polyesters, Metal-catalyzed ring-opening polymerization (ROP), Copolymers, Rheology, Barrier properties
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-241010DOI: 10.1016/j.mtcomm.2018.10.001ISI: 000453844500042Scopus ID: 2-s2.0-85054682605OAI: oai:DiVA.org:kth-241010DiVA, id: diva2:1276799
Note

QC 20190109

Available from: 2019-01-09 Created: 2019-01-09 Last updated: 2019-01-09Bibliographically approved

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Fuoco, Tiziana

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