NDLI: Suspension “click” polymerizations: thiol-ene polymer particles prepared with natural gum stabilizers

Content Provider	Springer Nature Link
Author	Durham, Olivia Z. Shipp, Devon A.
Copyright Year	2015
Abstract	The impact of different natural gum species employed as stabilizers in the suspension photopolymerization of water-borne thiol-ene polymer particles is reported. The focus of analysis was on how hydrocolloids impact the synthesis of polymer particles prepared using a “click” thiol-ene polymerization approach. The use of renewable and naturally occurring gums as particle stabilizers provide a shift toward greener methods of polymer particle synthesis. The natural gum species examined include gum Arabic, guar gum, and xanthan gum. In particular, gum Arabic was examined in thiol-ene particle synthesis due to inherent colloidal stabilizing properties that allow it to be utilized at concentrations comparable to synthetic stabilizers (1 wt% or greater). The use of these naturally occurring polysaccharides led to the development of spherical, cross-linked thiol-ene polymer particles in the size range of several micrometers to hundreds of micrometers. Polymer particle synthesis was completed within minutes via photopolymerization. Parameters examined include variation of natural gum species, natural gum concentration, monomer content, and stabilizer solution viscosity. Thiol-ene polymer particles can be successfully developed at very low stabilizer concentrations (0.005–0.5 wt%) due to the unique viscosity-enhancing properties of natural gum solutions compared to reactions stabilized by synthetic surfactant stabilizers.
Starting Page	2385
Ending Page	2394
Page Count	10
File Format	PDF
ISSN	0303402X
Journal	Colloid and Polymer Science
Volume Number	293
Issue Number	8
e-ISSN	14351536
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-06-02
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Thiol-ene polymerization Click chemistry Suspension polymerizations Natural gum stabilizers Polymer Sciences Soft and Granular Matter, Complex Fluids and Microfluidics Characterization and Evaluation of Materials Physical Chemistry Food Science Nanotechnology and Microengineering
Content Type	Text
Resource Type	Article
Subject	Colloid and Surface Chemistry Materials Chemistry Physical and Theoretical Chemistry Polymers and Plastics

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