Synthesis of 2-Hydroxypropyl Trimethylammonium Chloride Chitosan and its Application in Bamboo Fiber Paper

Abstract

To obtain a functional composite paper with antibacterial activity, 2-hydroxypropyl trimethylammonium chloride chitosan (HACC) was prepared and sprayed onto the surface of paper made of bamboo fiber. HACC was synthesized from chitosan with 2,3-epoxypropyl trimethylammonium chloride (GTAMC), and the optimal preparation conditions were selected by single-factor tests. The highest degree of substitution (DS) of HACC reached 0.868, when the ratio of chitosan to GTAMC was 1:4, and the water solubility was noticeably improved. The structural characterization demonstrated the successful modification on the original chitosan with a decrease in heat stability and the peak correlated with hydroxypropyl trimethylammonium chloride groups in FTIR. The addition of HACC in the bamboo fiber paper greatly increased the antibacterial activity, and water absorption was higher as well. These results may serve as a basis for the modification and the preparation of chitosan antibacterial agents.

Conductive Cellulose-Derived Carbon Nanofibrous Membranes with Superior Softness for High-Resolution Pressure Sensing and Electrophysiology Monitoring

“…The difference in Ra values before and after carbonization is found to be in the range of a few nanometers, which is considered to be insignificant. Moreover, the as-spun cellulose/silanol nets and the annealed C-Si nets show bending rigidity values between 6.2 and 55.4 mN (Figure g), which are lower than those of toilet paper (200 mN) and silk (110 mN), and even comparable to those of tissue paper and synthetic polymer-based CNFs (SP-CNFs). − Such superior softness makes them possible to be used as compliant conductive nanomaterials for emerging intelligent electronics applications.…”

Quaternized Chitosan-Based Anion Exchange Membrane Composited with Quaternized Poly(vinylbenzyl chloride)/Polysulfone Blend

“…The quaternization of chitosan was carried out by following a report published elsewhere [ 26 , 28 , 29 ]. Briefly, deacetylated chitosan (6 g) was dispersed in 60 mL of deionized (DI) water at 85 °C by stirring vigorously.…”

“…Quaternized PVBC mixed with quaternized CTS(Chitosan) was used as an anion exchange membrane to obtain mechanical-chemical stability and enhance conductivity. Chitosan is a natural macromolecule polymer, which is biodegradable, low-toxic, and inexpensive [ 25 , 26 , 27 , 28 ]. CTS has been studied as a polymer membrane in fuel cell systems owing to its high mechanical strength and impressive film-forming capability [ 28 ].…”

“…Chitosan is a natural macromolecule polymer, which is biodegradable, low-toxic, and inexpensive [ 25 , 26 , 27 , 28 ]. CTS has been studied as a polymer membrane in fuel cell systems owing to its high mechanical strength and impressive film-forming capability [ 28 ]. Meanwhile, the CTS membrane exhibited relatively low conductivity; therefore, (2,3-expoxylpropyl) trimethylammonium chloride (EPTMAC) was used to modify the CTS.…”

In situ formation of zinc oxide on bamboo bleached pulp in preparation of antibacterial paper: Effect of precursors addition

“…Zhang et al (2013) improved antibacterial activity of bamboo fabric at 99% performance degree against S. aureus and E. coli by synthesizing zinc oxide. Another study conducted by Yin et al (2017) improved the porosity properties of bamboo tissue paper's (napkins) surface by incorporating chitosan. In addition, Zhang et al (2017) improvised bamboo antibacterial performance using zinc oxide and graphene oxide.…”