All-lignin approach to prepare cationic colloidal lignin particles: Stabilization of durable Pickering emulsions

Mika Henrikki Sipponen, Matthew Smyth, Timo Leskinen, Leena Sisko Johansson, Monika Österberg

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Sammanfattning

Surface modification of colloidal lignin particles (CLPs), which are obtained from renewable resources, is a plausible route towards novel biomaterials. Here we show that adsorption of cationic lignin onto spherical CLPs produces positively charged particles with tailored properties for the stabilization of Pickering emulsions. The threshold dosing of cationic lignin needed to achieve colloidally stable cationic dispersions was 4% relative to the dry weight of CLPs. Compared to irregular kraft lignin particles or regular CLPs, cationic CLPs stabilized a broader array of durable Pickering emulsions. This all-lignin adsorption process to prepare cationic CLPs is advantageous because it minimizes the consumption of synthetic polymers, and opens new application opportunities for structurally defined nano- and microscale lignin particles.

Originalspråkengelska
TidskriftGreen Chemistry
Volym19
Nummer24
Sidor (från-till)5831-5840
Antal sidor10
ISSN1463-9262
DOI
StatusPublicerad - 2017
MoE-publikationstypA1 Tidskriftsartikel-refererad

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© 2017 The Royal Society of Chemistry.

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