title: 2-Hydroxypropyltrimethylammonium xylan adsorption onto rod-like cellulose nanocrystal.
abstract: Chemical incompatibility and relatively weak interaction between lignocellulosic fibers and synthetic polymers have made studies of wood fiber-thermoplastic composite more challenging. In this study, adsorption of 2-hydroxypropyltrimethylammonium xylans onto rod-like cellulose nanocrystals are investigated by zeta-potential measurements, and polarized and depolarized dynamic light scattering as a factor for better understanding of lignocellulosic fibers and cellulose nanocrystals. Zeta-potential measurements show xylan derivative adsorption onto cellulose nanocrystals. Decay time distributions of the ternary system and binary system from dynamic light scattering show that aggregates exist in the binary system and they disappear in the ternary system. At low 2-hydroxypropyltrimethylammonium xylan concentrations relative to that of cellulose nanocrystal, xylan derivatives adsorbed onto some of the cellulose nanocrystal. Hence, more xylan derivatives adsorbed onto cellulose nanocrystal increased with increasing xylan derivative concentration. Also, the concentration dependence of the ratio of the rotational diffusion coefficient to the translational diffusion coefficient revealed a strong adsorptive interaction between xylan derivatives and the cellulose nanocrystals.
authors.affiliation: Department of Applied Chemistry, Kyushu University, Fukuoka 819-0395, Japan. Electronic address: jsim76@gmail.com.
authors.forename: Jae Hyun
authors.initials: JH
authors.lastname: Sim
authors.affiliation: Department of Wood Science and Forest Product, Virginia Tech, Blacksburg, Virginia 24061, United States. Electronic address: dongs05@vt.edu.
authors.forename: Shuping
authors.initials: S
authors.lastname: Dong
authors.affiliation: Thüringisches Institut für Textil- und Kunststoff-Forshung e.V., Beritscheidstrabe 97, 07407 Rudolstat, Germany. Electronic address: roemhild@titk.de.
authors.forename: Katrin
authors.initials: K
authors.lastname: Röemhild
authors.affiliation: Department of Metallurgy and Materials Engineering, Gaziantep University, Gaziantep 27310, Turkey. Electronic address: akaya@gantep.edu.tr.
authors.forename: Abdulaziz
authors.initials: A
authors.lastname: Kaya
authors.affiliation: Department of Chiemistry, Hanyang University, Seoul 133-791, Republic of Korea. Electronic address: dsohn@hanyang.ac.kr.
authors.forename: Daewon
authors.initials: D
authors.lastname: Sohn
authors.affiliation: Department of Applied Chemistry, Kyushu University, Fukuoka 819-0395, Japan. Electronic address: k-tanaka@cstf.kyushu-u.ac.jp.
authors.forename: Keiji
authors.initials: K
authors.lastname: Tanaka
authors.affiliation: Department of Wood Science and Forest Product, Virginia Tech, Blacksburg, Virginia 24061, United States. Electronic address: mgrunert@vt.edu.
authors.forename: Maren
authors.initials: M
authors.lastname: Roman
authors.affiliation: Center of Excellence for Polysaccharide Research, Friedrich Schiller University of Jena, Humboldtstrasse 10, Jena 07743, Germany. Electronic address: thomas.heinze@uni-jena.de.
authors.forename: Thomas
authors.initials: T
authors.lastname: Heinze
authors.affiliation: Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States. Electronic address: aesker@vt.edu.
authors.forename: Alan R
authors.initials: AR
authors.lastname: Esker
mesh_terms: D000327:Adsorption; D064751:Ammonium Compounds / Q000737:chemistry*; D002482:Cellulose / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry*; D014990:Xylans / Q000737:chemistry*
chemical_list: D064751:Ammonium Compounds; D014990:Xylans; D002482:Cellulose
keywords: Cellulose nanocrystal; Depolarized dynamic light scattering