MIPs logo MIPdatabase      Use this space
Custom Search
Reference type: Journal
Authors: Cooper AI, Hems WP, Holmes AB
Article Title: Synthesis of highly cross-linked polymers in supercritical carbon dioxide by heterogeneous polymerization.
Publication date: 1999
Journal: Macromolecules
Volume: 32
Issue: (7)
Page numbers: 2156-2166.
DOI: 10.1021/ma981494b
Alternative URL: http://www.liv.ac.uk/~aicooper/Macromolecules_99_32_2156.pdf

Abstract: This paper reports the synthesis of highly cross-linked polymers in supercritical CO2 (scCO(2)), both with and without the addition of a CO2-soluble diblock copolymer stabilizer. It was demonstrated that, under certain specific conditions, relatively uniform, nonporous poly(divinylbenzene) (PDVB) microspheres (1-5 mu m diameter) can be generated in the absence of added stabilizers. The effects of cross- linker ratio, monomer concentration, cross-linker structure, and mechanical agitation were investigated. A CO2-soluble diblock copolymer stabilizer was synthesized using a modified screened anionic polymerization (SAP) method. In the presence of this stabilizer (3% w/w), much smaller PDVB microspheres (<0.5 mu m diameter) were formed, and it was shown that the particle size and particle size distribution were strongly dependent on the stabilizer concentration. A range of cross-linked terpolymers containing reactive or surface-active functional groups was generated by heterogeneous copolymerization in scCO(2). Finally, these methods were extended to the synthesis of functional cross-linked microspheres containing an organic dye as a host molecule

  Holmium periodic table mug  Mug featuring the name Andrew spelled out in the single letter amino acid code  I shop perodically customisable tote bag

Molecules Special Issue call      Appeal for information


Join the Society for Molecular Imprinting
Logo of the Society for Molecular Imprinting

New items RSS feed
new items RSS feed  View latest updates

Sign-up for e-mail updates:
Choose between receiving an occasional newsletter or more frequent e-mail alerts.
Click here to go to the sign-up page.

Is your name elemental or peptidic? Enter your name and find out by clicking either of the buttons below!
Other products you may like:
view listings for MIP books on eBay:

Mickey Mouse 90th Anniversary banner