| Titre : |
Film formation from conventional and miniemulsion latex systems containing dimethyl meta-isopropenyl benzyl isocyanate (TMI) - a functional monomer/crosslinking agent |
| Type de document : |
texte imprimé |
| Auteurs : |
Yoshimi Inaba, Auteur ; Eric S. Daniels, Auteur ; Mohamed S. El-Aasser, Auteur |
| Année de publication : |
1994 |
| Article en page(s) : |
p. 63-74 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Copolymère styrène acrylate de butyle
Formation de film
Isocyanates
Polymérisation en émulsion
Réticulants
Revêtements en phase aqueuse:Peinture en phase aqueuse
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
A series of model styrene (St)/n-butyl acrylate (BA) copolymer latexes with glass transition temperatures below room temperature were prepared by either conventional or miniemulsion polymerization techniques as model systems for studies of film formation. The functional monomer TMI® (META) (dimethyl meta-isopropenyl benzyl isocyanate) was used as a functional monomer/crosslinking agent. A small amount of methacrylic acid (MAA) was introduced in some formulations to enhance the crosslinking reactions. A redox initiation system was used to reduce premature crosslinking during the polymerization. A combination of an ionic surfactant (sodium lauryl sulfate) and co-surfactant (hexadecane or cetyl alcohol) was used as the mixed emulsifier for the miniemulsion system.
This paper describes the performance of TMI as a crosslinking agent and the effects of the combination of TMI and MAA on the latex film formation process. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Miniemulsification - Polymerization - Evaluation methods
- RESULTS AND DISCUSSION : Effect of the crosslinking agent concentration - Effect of initiator concentration - Effect of BA/St ratio - Influence of emulsifier concentration and differences between mixed emulsifier systems - Differences between latex film dried from St/BA/TMI/MAA copolymer latex and a blend of St/BA/TMI with St/BA/MAA copolymer latexes with varying TMI/MMA ratios |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18643 |
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 66, N° 833 (06/1994) . - p. 63-74
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