| Auteur | Rechercher : Hemraz, U. D1; Rechercher : Danumah, C.2; Rechercher : Lu, A.1; Rechercher : Boluk, Y.2 |
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| Affiliation | - Conseil national de recherches du Canada. Développement des cultures et des ressources aquatiques
- Conseil national de recherches du Canada. Technologies de sécurité et de rupture
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| Format | Texte, Article |
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| Conférence | Nanotech Conference and Expo 2012, June 18-21, 2012, Santa Clara, CA, USA |
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| Sujet | Functionalizations; Functionalized; Living radical polymerization; Lower critical solution temperature; N-isopropylacrylamides; Nanocrystalline cellulose; Polymer chains; Polymer grafting; Resulting materials; Rheometry; Stable systems; Thermoresponsive polymer; Viscoelastic properties; Viscosity value; Acrylic monomers; Cellulose derivatives; Grafting (chemical); Living polymerization; Polymers; Rheology; Shear viscosity; Thermodynamic properties; Viscoelasticity; Nanocomposite films; Copolymerization; Low Temperature; Polyacrylics; Thin Films |
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| Résumé | Nanocrystalline cellulose (NCC) was grafted with the thermo-responsive polymer poly(N-isopropylacrylamide) (Nipaam) via living radical polymerization. Various techniques were used to characterize the physical, chemical, morphological and thermal properties of the resulting material. The viscoelastic properties and the stability of the functionalized NCC were compared to the unmodified NCC using rheometry. The shear viscosity of the NCC suspension decreased slightly with an increase in temperature from 20°C to 45°C, indicating a stable system. The storage modulus and shear viscosity values both exhibited a burst increase at about 32.5°C, which is assigned to be the lower critical solution temperature (LCST) of poly(Nipaam). This indicates the successful functionalization of Nipaam polymer chains on NCC. In addition, the thermodynamic property of poly(Nipaam) also prevailed on the grafted NCC. |
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| Date de publication | 2012 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 21270286 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 927d8c4c-3486-4ac6-b6e4-6e55e41498e8 |
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| Enregistrement créé | 2014-01-20 |
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| Enregistrement modifié | 2020-04-21 |
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