文献类型：期刊文献

英文题名：CHEMISTRY AND APPLICATIONS OF NANOCRYSTALLINE CELLULOSE AND ITS DERIVATIVES: A NANOTECHNOLOGY PERSPECTIVE

作者：Peng, B. L.[1,2,3];Dhar, N.[1];Liu, H. L.[2,3];Tam, K. C.[1]

机构：[1]Univ Waterloo, Dept Chem Engn, Waterloo Inst Nanotechnol, Waterloo, ON N2L 3G1, Canada;[2]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China

年份：2011

卷号：89

期号：5

起止页码：1191

外文期刊名：CANADIAN JOURNAL OF CHEMICAL ENGINEERING

收录：;EI(收录号：20113814339440);WOS:【SCI-EXPANDED(收录号:WOS:000295223800023)】；

基金：B. L. Peng thanks the China Scholarship Council for supporting his research at University of Waterloo, Canada. K. C. Tam would like to acknowledge the support from CFI and NSERC. H. L. Liu would like to acknowledge the financial support from the National Natural Science Foundation of China (20736002) and the 111 Project of China (B08021). We wish to thank Dr. Richard Berry (Domtar-FPInnovations Joint Venture Company) for his support and encouragement in the research on NCC.

语种：英文

外文关键词：nanocrystalline cellulose; chemical modification; applications

摘要：Nanocrystalline cellulose (NCC) is an emerging renewable nanomaterial that holds promise in many different applications, such as in personal care, chemicals, foods, pharmaceuticals, etc. By appropriate modification of NCC, various functional nanomaterials with outstanding properties, or significantly improved physical, chemical, biological, as well as electronic properties can be developed. The nanoparticles are stabilised in aqueous suspension by negative charges on the surface, which are produced during the acid hydrolysis process. NCC suspensions can form a chiral nematic ordered phase beyond a critical concentration, i.e. NCC suspensions transform from an isotropic to an anisotropic chiral nematic liquid crystalline phase. Due to its nanoscale dimension and intrinsic physicochemical properties, NCC is a promising renewable biomaterial that can be used as a reinforcing component in high performance nanocomposites. Many new nanocomposite materials with attractive properties were obtained by the physical incorporation of NCC into a natural or synthetic polymeric matrix. Simple chemical modification on NCC surface can improve its dispersability in different solvents and expand its utilisation in nano-related applications, such as drug delivery, protein immobilisation, and inorganic reaction template. This review paper provides an overview on this emerging nanomaterial, focusing on the surface modification, properties and applications of NCC.