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TitleSurface chemistry of nanocellulose and its composites
Author(s)Padrão, Jorge
Zille, Andrea
Surface chemistry
Issue dateJun-2021
PublisherCRC Press
Abstract(s)Cellulose is recurrently defined as the most abundant biopolymer on planet Earth, displaying an overall estimated production rate of more than 0.2 billion tons in a single day. Cellulose prompt availability allied to it its mechanical properties made it virtually indissociable from the majority of anthropogenic commodities. Nevertheless, continuous progress demands superior features form daily common materials, being most of them adequately suited by low-cost petrochemical polymers. Fortunately, the higher Environmental awareness of the global population as well as 1 the remarkable properties of biosynthesized polymers, has driven an extensive research on a plethora of biopolymers, including cellulose. Cellulose most notable features are associated to its crystal domains, which are impressively underscored with the development of cellulose nanotechnology. Moreover, at nanoscale the cellulose surface richness in hydroxyl groups is comprehensively more available, considerably t broadening he effectiveness and potential of their interaction per se, but also by enhancing the efficacy of surface modification and functionalization. Nanocellulose surface modification was implemented almost contemporary to its discovery and characterization, and its objectives ranged between improving yield of nanocellulose production, lower its production costs, and to provide nanocellulose a completely distinct surface properties by changing its polarity, generating different functional groups, decorating it with adsorbed or tightly bound nanoparticles, and to provide additional chemical compatibility with distinct compounds to generate advanced nanocomposites. The plethora of successfully reported modifications and functionalizations underscore notable properties of both modified nanocellulose and its composites. This Chapter intends to highlight these remarkable features, hopefully widening the scope of novel applications of these impressive bio-based polymers.
TypeBook part
Publisher version
AccessOpen access
Appears in Collections:DET/2C2T - Livros e capítulos de livros

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