The Importance of Proper Anchoring of an Amphiphilic Dispersant for Colloidal Stability
Artikel i vetenskaplig tidskrift, 2012

Highly stable poly(methyl methacrylate) (PMMA) based microcapsule suspensions without excess dispersant are obtained via the solvent evaporation route using poly(methyl methacrylate)-block-poly(sodium methacrylate) or poly(methyl methacrylate)-block-poly(sodium acrylate) diblock copolymers as dispersant. The stable suspension is characterized by a high ζ-potential that does not change with time or after washing steps. It is indirectly proven on model PMMA surfaces using quartz crystal microbalance with dissipation monitoring that the PMMA block of the copolymer is embedded in the underlying PMMA microcapsule. Such anchoring of the dispersant is key for the good colloidal stability.

Författare

Markus Andersson Trojer

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

SuMo Biomaterials

Krister Holmberg

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

Magnus Nydén

SuMo Biomaterials

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

Langmuir

0743-7463 (ISSN) 1520-5827 (eISSN)

Vol. 28 19 4047-4050

Ämneskategorier

Polymerkemi

Fysikalisk kemi

Annan kemi

Drivkrafter

Hållbar utveckling

Innovation och entreprenörskap

Styrkeområden

Nanovetenskap och nanoteknik

Materialvetenskap

Fundament

Grundläggande vetenskaper

DOI

10.1021/la300112t

Mer information

Skapat

2017-10-08