Poly(3‐hydroxybutirate‐co‐3‐hydroxyvalerate)–Polystyrene Hybrid Nanoparticles via Miniemulsion Polymerization. Issue 1 (6th July 2015)

• Record Type: Journal Article
• Authors: Leimann, Fernanda Vitória; Costa, Cristiane; Gonçalves, Odinei Hess; Musyanovych, Anna; Landfester, Katharina; Sayer, Claudia; de Araújo, Pedro Henrique Hermes
• Other Names: Paulis María guestEditor.; Asua José M. guestEditor.
• Is Part Of: Macromolecular reaction engineering. Volume 10:Issue 1(2016)
• Page Start: 39
• Page End: 46
• Publication Date: 2015-07-06
• Subjects: Polymers -- Periodicals; Polymerization -- Periodicals; Reaction mechanisms (Chemistry) -- Periodicals; Electronic journals; 547.705
• DOI: 10.1002/mren.201500023
• Languages: English
• ISSNs: 1862-832X

Abstract

Abstract : Hybrid polymer nanoparticles were obtained by miniemulsion polymerization of styrene with poly(3‐hydroxybutirate‐co‐3‐hydroxyvalerate) (PHBV). Lower polymerization rates were obtained with the gradual addition of PHBV. These results were represented by simulations using a mathematical model that takes into account grafting reactions between the growing polymeric chains and PHBV double bonds (reduced molar mass). Hybrid nanoparticles presented average diameters of up to 113 nm and grafting yield of 94.4%. The hybrid fractions obtained by Selective Soxhlet Extraction were characterized with Fourier Transform Infrared Spectroscopy, Differential Scanning Calorimetry and Transmission Electron Microscopy. Blend nanoparticles were used to confirm the hybrid formation. Abstract : In the present work, a novel hybrid polymer is synthesized with PHBV and PS by miniemulsion polymerization . Nanoparticles presenting narrow size distribution, a high grafting yield, and the hybrid formation is confirmed by FTIR and DSC. The new material presents different thermal characteristics enabling its use for new applications.