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Olefin-Metathesis-Derived Norbornene–Ethylene–Vinyl Acetate/Vinyl Alcohol Multiblock Copolymers: Impact of the Copolymer Structure on the Gas Permeation Properties. Polymers (Basel) 2022; 14:polym14030444. [PMID: 35160434 PMCID: PMC8839206 DOI: 10.3390/polym14030444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 01/14/2022] [Accepted: 01/17/2022] [Indexed: 12/04/2022] Open
Abstract
Commercial metathesis polynorbornene is used for the fabrication of high-damping coatings and bulk materials that dissipate vibration and impact energies. Functionalization of this non-polar polymer can improve its adhesive, gas barrier, and other properties, thereby potentially expanding its application area. With this aim, the post-modification of polynorbornene was carried out by inserting ethylene–vinyl acetate–vinyl alcohol blocks into its backbone via the cross-metathesis of polynorbornene with poly(5-acetoxy-1-octenylene) and subsequent deacetylation and hydrogenation of the obtained multiblock copolymers. For the first time, epoxy groups were introduced into the main chains of these copolymers, followed by the oxirane ring opening reaction. The influence of post-modification on the thermal, gas separation, and mechanical properties of the new copolymers was studied. It was shown that the gas permeability of the copolymer significantly depends on its composition, as well as on the amounts of hydroxyl and epoxy groups. The developed methods efficiently improve the barrier properties, reducing the oxygen permeability by 15–33 times in comparison with polynorbornene. The obtained results are promising for various applications and can be extended to a broader family of polydienes and other polymers containing backbone double bonds.
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Denisova YI, Shandryuk GA, Arinina MP, Levin IS, Zhigarev VA, Gringolts ML, Finkelshtein ES, Malkin AY, Kudryavtsev YV. Multiblock Copolymers of Norbornene and Cyclododecene: Chain Structure and Properties. Polymers (Basel) 2021; 13:1756. [PMID: 34072052 PMCID: PMC8199182 DOI: 10.3390/polym13111756] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/24/2021] [Accepted: 05/24/2021] [Indexed: 02/04/2023] Open
Abstract
We investigate the structure-property relations of the multiblock copolymers of norbornene with cyclododecene synthesized via the macromolecular cross-metathesis reaction between amorphous polynorbornene and semicrystalline polydodecenamer in the presence of the first-generation Grubbs catalyst. By adjusting the reaction time, catalyst amount, and composition of the initial system, we obtain a set of statistical multiblock copolymers that differ in the composition and average length of norbornene and dodecenylene unit sequences. Structural, thermal, and mechanical characterization of the copolymers with NMR, XRD, DSC (including thermal fractionation by successive self-nucleation and annealing), and rotational rheology allows us to relate the reaction conditions to the average length of crystallizable unit sequences, thicknesses of corresponding lamellas, and temperatures of their melting. We demonstrate that isolated dodecenylene units can be incorporated into crystalline lamellas so that even nearly random copolymers should retain crystallinity. Weak high-temperature endotherms observed in the multiblock copolymers of norbornene with cyclododecene and other cycloolefins could indicate that the corresponding systems are microphase-separated in the melt state.
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Affiliation(s)
- Yulia I. Denisova
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia; (Y.I.D.); (G.A.S.); (M.P.A.); (I.S.L.); (V.A.Z.); (M.L.G.); (E.S.F.); (A.Y.M.)
| | - Georgiy A. Shandryuk
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia; (Y.I.D.); (G.A.S.); (M.P.A.); (I.S.L.); (V.A.Z.); (M.L.G.); (E.S.F.); (A.Y.M.)
| | - Marianna P. Arinina
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia; (Y.I.D.); (G.A.S.); (M.P.A.); (I.S.L.); (V.A.Z.); (M.L.G.); (E.S.F.); (A.Y.M.)
| | - Ivan S. Levin
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia; (Y.I.D.); (G.A.S.); (M.P.A.); (I.S.L.); (V.A.Z.); (M.L.G.); (E.S.F.); (A.Y.M.)
| | - Vsevolod A. Zhigarev
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia; (Y.I.D.); (G.A.S.); (M.P.A.); (I.S.L.); (V.A.Z.); (M.L.G.); (E.S.F.); (A.Y.M.)
| | - Maria L. Gringolts
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia; (Y.I.D.); (G.A.S.); (M.P.A.); (I.S.L.); (V.A.Z.); (M.L.G.); (E.S.F.); (A.Y.M.)
| | - Eugene Sh. Finkelshtein
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia; (Y.I.D.); (G.A.S.); (M.P.A.); (I.S.L.); (V.A.Z.); (M.L.G.); (E.S.F.); (A.Y.M.)
| | - Alexander Ya. Malkin
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia; (Y.I.D.); (G.A.S.); (M.P.A.); (I.S.L.); (V.A.Z.); (M.L.G.); (E.S.F.); (A.Y.M.)
| | - Yaroslav V. Kudryavtsev
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia; (Y.I.D.); (G.A.S.); (M.P.A.); (I.S.L.); (V.A.Z.); (M.L.G.); (E.S.F.); (A.Y.M.)
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071 Moscow, Russia
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Morontsev AA, Gringolts ML, Filatova MP, Denisova YI, Kudryavtsev YV, Finkelstein ES. Synthesis of New of Norbornene–1,5-Bis(hexenyl)hexamethyltrisiloxane Copolymers via Olefin Metathesis Reaction. POLYMER SCIENCE SERIES B 2020. [DOI: 10.1134/s1560090420060093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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