Title: Treatment of a cellulose fiber surface with a suberin monomer-derived polymer
Page Range: p.75-90
Author(s): Dongfang Li; Iversen T; Ek M
File size:
Download the pdf (subscribers only)
Buy the pdf (non-subscribers)
Journal: Polymers from Renewable Resources
Issue Year: prr
Volume: 6
Issue No: No.3
Abstract
The biorefinery concept requires the development of value-added products, such as materials from biomass, including bark. Suberin is the most abundant component in birch (Betula verrucosa) outer bark and acts as a barrier against the penetration of water and external attacks from microorganisms. The aliphatic domain of suberin is rich in hydroxy fatty acids, such as cis-9,10-epoxy-18hydroxyoctadecanoic acid. In this study, it was isolated from the outer bark of birch and polymerised to prepare polyepoxy acid (PEA), which was used to impregnate filter papers. After complete drying, PEA-loaded filter papers were placed under UV to crosslink the epoxides through cationic polymerisation with a diaryliodonium salt as the photo-initiator. The crosslinking was evaluated using Fourier transform infrared (FTIR) spectroscopy and differential scanning calorimetry (DSC). The materials obtained after UV curing showed substantially increased hydrophobicity, decreased moisture absorption, increased tensile strength, and increased ductility. Field-emission scanning electron microscopy (FE-SEM) showed that the crosslinked PEA covered the surface of the cellulose fibres and filled the interstitial spaces. 45 Refs.
Related reading
More journal reading and science coverage connected to this topic.
Influence of botanic origin on the morphology and size of starch nanoparticles from Andean native starch sources
Title: Influence of botanic origin on the morphology and size of starch nanoparticles from Andean native starch sources Page Range: p.91-104 Author(s): Torres F…
Production and characterization of gelatin-starch polymer matrix reinforced with cellulose fibers
Title: Production and characterization of gelatin-starch polymer matrix reinforced with cellulose fibers Page Range: p.105-118 Author(s): Rodriguez-Castellanos W; Rodrigue D; Martinez-Bustos F; Jimenez-Arevalo O;…