+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Effect of Small Reaction Locus in Free-Radical Polymerization: Conventional and Reversible-Deactivation Radical Polymerization

Effect of Small Reaction Locus in Free-Radical Polymerization: Conventional and Reversible-Deactivation Radical Polymerization

Polymers 8(4)

When the size of a polymerization locus is smaller than a few hundred nanometers, such as in miniemulsion polymerization, each locus may contain no more than one key-component molecule, and the concentration may become much larger than the corresponding bulk polymerization, leading to a significantly different rate of polymerization. By focusing attention on the component having the lowest concentration within the species involved in the polymerization rate expression, a simple formula can predict the particle diameter below which the polymerization rate changes significantly from the bulk polymerization. The key component in the conventional free-radical polymerization is the active radical and the polymerization rate becomes larger than the corresponding bulk polymerization when the particle size is smaller than the predicted diameter. The key component in reversible-addition-fragmentation chain-transfer (RAFT) polymerization is the intermediate species, and it can be used to predict the particle diameter below which the polymerization rate starts to increase. On the other hand, the key component is the trapping agent in stable-radical-mediated polymerization (SRMP) and atom-transfer radical polymerization (ATRP), and the polymerization rate decreases as the particle size becomes smaller than the predicted diameter.

(PDF emailed within 0-6 h: $19.90)

Accession: 066685890

Download citation: RISBibTeXText

PMID: 30979249

DOI: 10.3390/polym8040155

Related references

Uniform PEO star polymers synthesized in water via free radical polymerization or atom transfer radical polymerization. Macromolecular Rapid Communications 32(1): 74-81, 2011

Nanostructured hybrid hydrogels prepared by a combination of atom transfer radical polymerization and free radical polymerization. Biomaterials 30(29): 5270-5278, 2009

Synthesis of block copolymers by combination of atom transfer radical polymerization and visible light-induced free radical promoted cationic polymerization. Macromolecular Rapid Communications 33(4): 309-313, 2013

Well-defined biohybrids using reversible-deactivation radical polymerization procedures. Journal of Controlled Release 205: 45-57, 2016

Free radical polymerization engineeringI: A new method for modeling free radical homogeneous polymerization reactions. Chemical Engineering Science 39(1): 87-99, 1984

Integration of CuAAC Polymerization and Controlled Radical Polymerization into Electron Transfer Mediated "Click-Radical" Concurrent Polymerization. Macromolecular Rapid Communications 38(6), 2017

Copper-Mediated Reversible Deactivation Radical Polymerization in Aqueous Media. Angewandte Chemie 57(33): 10468-10482, 2018

Telechelic polymers from reversible-deactivation radical polymerization for biomedical applications. Chemical Communications 54(3): 228-240, 2017

Reversible Deactivation Radical Polymerization of Monomers Containing Activated Aziridine Groups. Macromolecular Rapid Communications 37(20): 1694-1700, 2016

Grafting-from cellulose nanocrystals via photoinduced Cu-mediated reversible-deactivation radical polymerization. Carbohydrate Polymers 157: 1033-1040, 2016

Reversible deactivation radical polymerization mediated by cobalt complexes: recent progress and perspectives. Organic and Biomolecular Chemistry 12(43): 8580-8587, 2014

Fluorescent dye-labeled TIPNO type regulator for nitroxide mediated reversible-deactivation radical polymerization. Journal of Photochemistry and Photobiology A: Chemistry 307-308: 123-130, 2015

Insights into relevant mechanistic aspects about the induction period of Cu(0)/Me(6)TREN-mediated reversible-deactivation radical polymerization. Chemical Communications 51(77): 14435-8, 2016

Molecular weight distribution of products of free radical nonisothermal polymerization with gel effect. Simulation for polymerization of poly(methyl methacrylate). Chemical Engineering Science 40(1): 87-104, 1985

Degradable copolymers with incorporated ester groups by radical ring-opening polymerization using atom transfer radical polymerization. Polimery 62(4): 262-271, 2017