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Epoxy nanocomposites reinforced with acetyl, hexanoyl, and dodecanoyl surface modified Cellulose Nanocrystals (CNC) were fabricated. Surface modified CNCs were dispersed in epoxy resin with a co-solvent. After complete removal of the co-solvent, a typical two component epoxy system was achieved where hardener was then added to cure the resin. Acetyl grafted CNC (CNC_a) and hexanoyl grafted CNC (CNC_h)...
Polyamide 11 (PA11) nanocomposites reinforced with Cellulose Nanocrystals (CNC), dodecanoic acid surface modified CNC (CNC_d), and CNC with methyl laurate (CNC + ML) as plasticizer were fabricated. With the addition of CNC alone, tensile modulus and strength of the PA11 were improved, but the toughness decreased at high CNC concentration. Using CNCs that were surface modified, the tensile modulus...
Nanoconfinement of a polymer film affords a reduction of the glass transition temperature (Tg) and effective viscosity (ηeff). Early on, Prof. Tisato Kajiyama pioneered the idea of enhanced polymer mobility at the free surface. This concept is now well established, and accounts for the Tg and ηeff reductions of thin polymer films. To pay tribute to Prof. Kajiyama's seminal contribution, it is fitting...
Deposition of polydopamine on substrates is a facile and effective method of surface modification and the deposited polydopamine can reduce silver ions to form silver nanoparticles (AgNPs) for antibacterial applications. However, polydopamine deposition is a time-consuming process that usually requires 24 h to produce a dense surface coating. Since oxidation of dopamine is critical for its polymerization,...
Polypropylene is one of the widest spread commodity polymers in plastic industry with an estimated global consumption of 62.4 million tons in 2020. Surface modification of polypropylene is required for its application as textile fibers, packaging material or filtration membranes. Modification of polypropylene is challenging due to absent functional surface groups. An anchor-peptide-based toolbox for...
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