Abstract
This paper explores the influence of oxidation time on selective oxidation of regenerated cellulose with NO2/CCl4 as oxidation system. FTIR and other testing methods are used to characterize the structure of oxidized regenerated cellulose (ORC), showing that the regenerated cellulose is oxidized at C6 by the NO2/CCl4 system with extremely high selectivity. With the extension of oxidation duration, the carboxyl content in ORC increases gradually from 12.11 to 21.29 % while the degree of polymerization (DP) decreases from 92.86 to 53.40 and the strength of monofilament decreases gradually. In case of the reaction duration of 24 h, the performance of oxidation product can satisfy the requirement of absorbing hemostatic materials, i.e., with good hemostatic performance, while it is also provided with excellent antibacterial activity, which the reduction in colony forming units (CFU) is more than 99.9 %.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
