Abstract
A novel two-step assembly method was found and was used to fabricate special multihollow polymer microspheres. Firstly, monodisperse colloidal particles of poly(styrene-co-(n-butyl acrylate)-co-acrylic acid) (P(St-co-nBA-co-AA)) were synthesized by soap-free emulsion polymerization and the obtained emulsion was transferred to 1-octanol to form colloidosomes which were stabilized by Span 80 and the colloidal particles via assembling at the interface of water/oil. Secondly, the multihollow polymer microspheres were successfully fabricated by heat aggregation and fusion of the aforementioned colloidosomes and colloidal particles. The two-step assembly mechanism was revealed and explained based on the morphologies of multihollow polymer microspheres formed under different emulsifier amounts and sintering conditions.
| Original language | English |
|---|---|
| Pages (from-to) | 993-1001 |
| Number of pages | 9 |
| Journal | Colloid and Polymer Science |
| Volume | 293 |
| Issue number | 3 |
| DOIs | |
| State | Published - 27 Feb 2015 |
Keywords
- Aggregation
- Assembly
- Colloidal particles
- Colloidosomes
- Multihollow