Preparation of Emulsifier-Free Styrene-Acrylic Emulsion via Reverse Iodine Transfer Polymerization.

Polymers (Basel)

College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.

Published: September 2021

Styrene-acrylic emulsions containing hydroxyl functional monomer unit's component are widely used for maintenance coating. In this paper, a stable emulsifier-free styrene-acrylic emulsion with solid content over 43% could be obtained in 210 min via reverse iodine transfer polymerization (RITP). By adding a mixture of methacrylic acid (MAA) and poly(ethylene glycol)methyl ether methacrylate (PEGMA) into a system containing a high content of hydroxyl functional monomer component (19.4 wt.% of the total monomer mass), styrene (St) could be copolymerized with methyl methacrylate (MMA); the modified film exhibited good hardness properties, good adhesive properties, and low water absorption. An increase in the amount of PEGMA decreased the glass transition temperature (). When 1.4 times the reference amount of initiator was added, the highest molecular weight could reach 40,000 g.·mol with 0.25 times the reference amount of iodine in the emulsion. The largest tensile strength of the dried emulsion film over 5.5 MPa endowed the material with good mechanical properties. Living polymerization was proven by the kinetics of RITP emulsion and chain extension reaction. TEM micrographs manifest the emulsification of the seed random copolymer. This paper may provide a potential methodology for preparing polymer materials with excellent mechanical properties.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8512759PMC
http://dx.doi.org/10.3390/polym13193348DOI Listing

Publication Analysis

Top Keywords

emulsifier-free styrene-acrylic
8
styrene-acrylic emulsion
8
reverse iodine
8
iodine transfer
8
transfer polymerization
8
hydroxyl functional
8
functional monomer
8
times reference
8
reference amount
8
mechanical properties
8

Similar Publications

Preparation of Emulsifier-Free Styrene-Acrylic Emulsion via Reverse Iodine Transfer Polymerization.

Polymers (Basel)

September 2021

College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.

Styrene-acrylic emulsions containing hydroxyl functional monomer unit's component are widely used for maintenance coating. In this paper, a stable emulsifier-free styrene-acrylic emulsion with solid content over 43% could be obtained in 210 min via reverse iodine transfer polymerization (RITP). By adding a mixture of methacrylic acid (MAA) and poly(ethylene glycol)methyl ether methacrylate (PEGMA) into a system containing a high content of hydroxyl functional monomer component (19.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!