Recent Developments in Ring-Opening Polymerization

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Chemistry".

Deadline for manuscript submissions: closed (31 March 2023) | Viewed by 2149

Special Issue Editors


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Guest Editor
Dipartimento di Chimica, University of Milan, via C. Golgi 19, 20133 Milano, Italy
Interests: synthesis of polymers, mainly via ROP and polycondensation, with control of macromolecular architecture; bioplastics and environmentally friendly polymers; synthesis of green polymers; environmental degradation of plastics and polymers; polymer recycling
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Guest Editor
CRC Laboratorio di Materiali e Polimeri (LaMPo), Department of Chemistry, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
Interests: ring-opening polymerization; polyesters; polycondensation; gel permeation chromatography; polymer rheology; bioplastics; microplastics; step polymerization; sulphonated polyethersulphones; nanocellulose; in situ polymerization; nanocomposites; functional monomers’ synthesis; bio-based polymers

Special Issue Information

Dear Colleagues,

Ring-opening polymerization (ROP) is one of the most important polymerization routes, widely applied both on a base research and on an industrial level. ROP has many advantages over other similar kinds of polymerizations, such as polycondensation, for example, due to the possibility to increase conversions, avoiding the formation of small condensation products. This, for example, has proved to be fundamental in the industrial polymerization of polylactic acid (PLA).

On the other side, since ROP relies on the opening of a ring, it can be either favored or unfavored by the specific geometry of the ring itself (e.g., number of atoms) and by specific substituents, and therefore, plenty of research on ROP is currently ongoing to search for the best conditions and catalysts to perform efficient polymerizations, leading to high polymers and avoiding the use of harmful catalysts and reagents. Moreover, co-polymerizations performed by ROP also play a crucial role in the development of new polymers. This Special Issue is therefore aimed at uncovering all the latest news and trends related to ROP.

Dr. Marco A. Ortenzi
Dr. Stefano Gazzotti
Guest Editors

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Keywords

  • ring-opening polymerization
  • ROP catalysts
  • bio-based polymers via ROP
  • polyamides
  • polyesters

Published Papers (1 paper)

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Research

18 pages, 2038 KiB  
Article
Effect of Chain Structure on the Various Properties of the Copolymers of Fluorinated Norbornenes with Cyclooctene
by Olga A. Adzhieva, Maria L. Gringolts, Yulia I. Denisova, Georgiy A. Shandryuk, Ekaterina A. Litmanovich, Roman Yu. Nikiforov, Nikolay A. Belov and Yaroslav V. Kudryavtsev
Polymers 2023, 15(9), 2157; https://doi.org/10.3390/polym15092157 - 30 Apr 2023
Cited by 3 | Viewed by 1822
Abstract
Fluorinated polymers are attractive due to their special thermal, surface, gas separation, and other properties. In this study, new diblock, multiblock, and random copolymers of cyclooctene with two fluorinated norbornenes, 5-perfluorobutyl-2-norbornene and N-pentafluorophenyl-exo-endo-norbornene-5,6-dicarboximide, are synthesized by ring-opening metathesis copolymerization and macromolecular cross-metathesis in [...] Read more.
Fluorinated polymers are attractive due to their special thermal, surface, gas separation, and other properties. In this study, new diblock, multiblock, and random copolymers of cyclooctene with two fluorinated norbornenes, 5-perfluorobutyl-2-norbornene and N-pentafluorophenyl-exo-endo-norbornene-5,6-dicarboximide, are synthesized by ring-opening metathesis copolymerization and macromolecular cross-metathesis in the presence of the first- to third-generation Grubbs’ Ru-catalysts. Their thermal, surface, bulk, and solution characteristics are investigated and compared using differential scanning calorimetry, water contact angle measurements, gas permeation, and light scattering, respectively. It is demonstrated that they are correlated with the chain structure of the copolymers. The properties of multiblock copolymers are generally closer to those of diblock copolymers than of random ones, which can be explained by the presence of long blocks capable of self-organization. In particular, diblock and multiblock fluorine-imide-containing copolymers show a tendency to form micelles in chloroform solutions well below the overlap concentration. The results obtained may be of interest to a wide range of researchers involved in the design of functional copolymers. Full article
(This article belongs to the Special Issue Recent Developments in Ring-Opening Polymerization)
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