| Full text | |
| Author(s): |
Rufino, Thiago do Carmo
;
Breitkreitz, Marcia Cristina
;
Felisberti, Maria Isabel
Total Authors: 3
|
| Document type: | Journal article |
| Source: | Industrial & Engineering Chemistry Research; v. 56, n. 14, p. 3983-3992, APR 12 2017. |
| Web of Science Citations: | 1 |
| Abstract | |
Poly(bisphenol A carbonate) (PC) is the second most produced engineering polymer in the world; therefore, there are several papers describing its recycling. However, only a few employ a multivariate approach together with a solid statistics basis for proving the trends and capabilities of their methodology. In this work, we report the progress in PC glycolysis, aimed at the production of telechelic hydroxyl-terminated oligomers (PC(OH)(2)), with controlled molar mass. A Box-Behnken Design (BBD) was employed to evaluate the influence of temperature, ethylene glycol (EG)/PC molar ratio, and polymer solution concentration on the PC(OH)(2) molar mass and on reaction yield. The EG/PC molar ratio is the most important factor affecting reaction products. PC(OH)(2) yield and bisphenol A residue amounts can be controlled through reaction conditions. BBD allowed the optimization and the scale-up of the reaction, which presented a good correlation between large and small scales. (AU) | |
| FAPESP's process: | 10/17804-7 - Polymeric composites |
| Grantee: | Maria Isabel Felisberti |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 13/21757-2 - Polymeric coatings based on polycarbonate-melamine system |
| Grantee: | Thiago Do Carmo Rufino |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 15/25406-5 - Organizing matter: colloids formed by association of surfactants, polymers and nanoparticles |
| Grantee: | Watson Loh |
| Support Opportunities: | Research Projects - Thematic Grants |