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Fabrication and Characterization of Lignin/Dendrimer Electrospun Blended Fiber Mats Akbari, Somaye; Bahi, Addie; Farahani, Ali; Milani, Abbas S.; Ko, Frank K.

Abstract

Blending lignin as the second most abundant polymer in Nature with nanostructured compounds such as dendritic polymers can not only add value to lignin, but also increase its application in various fields. In this study, softwood Kraft lignin/polyamidoamine dendritic polymer (PAMAM) blends were fabricated by the solution electrospinning to produce bead-free nanofiber mats for the first time. The mats were characterized through scanning electron microscopy, Fourier transform infrared (FTIR) spectroscopy, zeta potential, and thermogravimetry analyses. The chemical intermolecular interactions between the lignin functional groups and abundant amino groups in the PAMAM were verified by FTIR and viscosity measurements. These interactions proved to enhance the mechanical and thermal characteristics of the lignin/PAMAM mats, suggesting their potential applications e.g. in membranes, filtration, controlled release drug delivery, among others.

Item Metadata

Title
Fabrication and Characterization of Lignin/Dendrimer Electrospun Blended Fiber Mats
Creator
Akbari, Somaye; Bahi, Addie; Farahani, Ali; Milani, Abbas S.; Ko, Frank K.
Publisher
Multidisciplinary Digital Publishing Institute
Date Issued
2021-01-20
Description
Blending lignin as the second most abundant polymer in Nature with nanostructured compounds such as dendritic polymers can not only add value to lignin, but also increase its application in various fields. In this study, softwood Kraft lignin/polyamidoamine dendritic polymer (PAMAM) blends were fabricated by the solution electrospinning to produce bead-free nanofiber mats for the first time. The mats were characterized through scanning electron microscopy, Fourier transform infrared (FTIR) spectroscopy, zeta potential, and thermogravimetry analyses. The chemical intermolecular interactions between the lignin functional groups and abundant amino groups in the PAMAM were verified by FTIR and viscosity measurements. These interactions proved to enhance the mechanical and thermal characteristics of the lignin/PAMAM mats, suggesting their potential applications e.g. in membranes, filtration, controlled release drug delivery, among others.
Subject
softwood Kraft lignin; polyamidoamine dendritic polymer; blended fiber mats; solution electrospinning; characterization
Genre
Article
Type
Text
Language
eng
Date Available
2021-02-09
Provider
Vancouver : University of British Columbia Library
Rights
CC BY 4.0
DOI
10.14288/1.0395837
URI
http://hdl.handle.net/2429/77262
Affiliation
Applied Science, Faculty of; Engineering, School of (Okanagan); Materials Engineering, Department of
Citation
Molecules 26 (3): 518 (2021)
Publisher DOI
10.3390/molecules26030518
Peer Review Status
Reviewed
Scholarly Level
Faculty
Rights URI
https://creativecommons.org/licenses/by/4.0/
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CC BY 4.0