Styrene and substituted styrene grafted functional polyolefins: Via nitroxide mediated polymerization
| Autor: | Domenichelli, Ilaria, Banerjee, Sanjib, Taddei, Sara, Martinelli, Elisa, Passaglia, Elisa, Ameduri, Bruno |
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| Přispěvatelé: | Isituto di Chimica dei Composti Organometallici, Consiglio Nazionale delle Ricerche, Consiglio Nazionale delle Ricerche [Milano] (CNR), Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), University of Pisa - Università di Pisa, Scuola Normale Superiore di Pisa (SNS) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Nitroxide mediated radical polymerization
Polymers and Plastics Bioengineering 02 engineering and technology 010402 general chemistry 01 natural sciences Biochemistry Styrene chemistry.chemical_compound Polymer chemistry Organic Chemistry Copolymer ComputingMilieux_MISCELLANEOUS 021001 nanoscience & nanotechnology Grafting grafting TEMPO-mediated copolymerization 0104 chemical sciences Polyolefin Monomer [CHIM.POLY]Chemical Sciences/Polymers chemistry Polymerization Polystyrene 0210 nano-technology |
| Zdroj: | Polymer chemistry 9 (2018): 307–314. doi:10.1039/c7py01693j info:cnr-pdr/source/autori:Domenichelli, Ilaria; Domenichelli, Ilaria; Domenichelli, Ilaria; Banerjee, Sanjib; Taddei, Sara; Taddei, Sara; Martinelli, Elisa; Passaglia, Elisa; Ameduri, Bruno/titolo:Styrene and substituted styrene grafted functional polyolefins: Via nitroxide mediated polymerization/doi:10.1039%2Fc7py01693j/rivista:Polymer chemistry (Print)/anno:2018/pagina_da:307/pagina_a:314/intervallo_pagine:307–314/volume:9 Polymer Chemistry Polymer Chemistry, Royal Society of Chemistry-RSC, 2018, 9, pp.307-314. ⟨10.1039/c7py01693j⟩ |
| ISSN: | 1759-9954 1759-9962 |
| Popis: | The grafting of (functionalized) polystyrene from bulk or surface-functionalized polyolefins via nitroxide mediated polymerization is described. High density polyethylene and a poly(ethylene-co-α-olefin) copolymer (EOC) modified with different functional 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO) derivatives were used as macroinitiators for the “grafting from” polymerization of various styrene-based monomers to yield polyolefin-g-polystyrene graft copolymers. The successful grafting of styrene and styrene derivatives was demonstrated by complementary analyses such as infrared (ATR-FTIR) and NMR spectroscopy, size exclusion chromatography, thermogravimetric analysis, and differential scanning calorimetry. Typically, IR spectroscopy of the grafted copolymers showed the bands attributable to the aromatic moieties and the obtained thermograms evidenced a lower degradation temperature for the grafted copolymers compared to that of polyolefin starting materials. In addition, solid state 19F-NMR was chosen to confirm the growth of polystyrene (PS) chains when EOC functionalized with a fluoroalkyl TEMPO was used for NMP. The extent of grafting of PS chains onto the polyolefin backbone was found to depend on the nature of the macroinitiator, especially on the structure and cleavage temperature of alkoxyamine derivatives created by TEMPO functionalization, on its content and on the adopted experimental conditions. |
| Databáze: | OpenAIRE |
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