Abstract
ABSTRACTWe present a systematic study of incorporating carboxyl groups into latex particles to enhance colloidal stability and the physical properties of the latex. Statistical copolymers of methacrylic acid and methyl methacrylate) were synthesized via catalytic chain transfer polymerization (CCTP) in emulsion. The vinyl‐terminated oligomers were in turn successfully utilized as chain transfer agents for the formation of diblock and pseudo triblock copolymers via sulfur‐free reversible addition–fragmentation chain transfer polymerization (SF‐RAFT). These copolymers were characterized using 1H NMR, size exclusion chromatography (SEC), dynamic light scattering (DLS), dynamic mechanical analysis (DMA), contact angle measurements and matrix‐assisted laser desorption/ionization time of flight mass spectroscopy (MALDI‐TOF‐MS) techniques. © 2019 The Authors. Journal of Polymer Science Part A: Polymer Chemistry published by Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019, 57, E1–E9
Highlights
Is suffers from a number of disadvantages, as it is prone to side reactions, which can decrease the reproducibility of reactions, and it is not possible to control the end group of polymers or obtain block copolymers, as it is in living radical polymerisation (LRP).[13,14,15,16,17]
The additional consideration in this work was the partitioning of the methacrylic acid (MAA) towards the particles, which are the intended of polymerisation
The versatility of CCT combined with sulfur free RAFT polymerisation has been demonstrated by applying it under emulsion polymerization conditions
Summary
Techniques for incorporating carboxyl groups into polymer latex particles have attracted attention in recent years.[1,2,3,4] Latex particles bearing carboxylic functional groups, either at their surface or internally, have numerous apKpElYicWatOioRnDs Si:n((mpleedasiceailndseiargt naot sletiacsst, faivdehkeesiyvweso,rds)) impact modifiers, as well as paper and textile coatings.[1,2,5,6,7,8] Water-soluble carboxylic acid containing monomers such as fumaric acid (FA), itaconic acid (IA), acrylic acid (AA) and methacrylic acid (MAA), listed in order of increasing hydrophobicity, are widely used in emulsion polymerization for the synthesis of carboxylated latexes. Co-oligomer with 15%MAA and 85%MMA composition was utilised for the synthesis all the di-block co-polymers: since, higher concentration of acid incorporated within the latex resulted in small amount of coagulation (3 – 8 wt%).
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Polymer Science Part A: Polymer Chemistry
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
