Pefluoropolyethers are a well known and widely used family of polymers, suitable to be employed as protective. Their main drawback is the lack of solubility, complete only in chlorofluorocarbons. In this work a serie of A-B-A block copolymers (FluoPLA), with a relative low molecular weight, were prepared by ROP of L- and D,L-lactide (PLA) in the presence of hydroxy terminated perfluoropolyether (Fluorolink® D-10H - FLK) as macroinitiator. In fact the use of block copolymers leads to different advantages: i.e. a limited segregation phenomena and higher polymer solubility. The resulting polymers were characterized (NMR, IR, GPC, DSC, light scattering) and tested as potential protective and surface modifier for cultural heritage (ESEM-EDS, solar-box technique, colorimeter analysis).
Poly(lactide)/Perfluoropolyether Block Copolymers: a Potential Candidate as Protective and Surface Modifier / M. Frediani; L. Rosi; M. Camaiti; D. Berti; A. Mariotti; A. Comucci; C. Vannucci; I. Malesci. - In: MACROMOLECULAR CHEMISTRY AND PHYSICS. - ISSN 1022-1352. - STAMPA. - Vol. 211, Issue 9:(2010), pp. 988-995. [10.1002/macp.201000034]
Poly(lactide)/Perfluoropolyether Block Copolymers: a Potential Candidate as Protective and Surface Modifier
FREDIANI, MARCO;ROSI, LUCA;BERTI, DEBORA;
2010
Abstract
Pefluoropolyethers are a well known and widely used family of polymers, suitable to be employed as protective. Their main drawback is the lack of solubility, complete only in chlorofluorocarbons. In this work a serie of A-B-A block copolymers (FluoPLA), with a relative low molecular weight, were prepared by ROP of L- and D,L-lactide (PLA) in the presence of hydroxy terminated perfluoropolyether (Fluorolink® D-10H - FLK) as macroinitiator. In fact the use of block copolymers leads to different advantages: i.e. a limited segregation phenomena and higher polymer solubility. The resulting polymers were characterized (NMR, IR, GPC, DSC, light scattering) and tested as potential protective and surface modifier for cultural heritage (ESEM-EDS, solar-box technique, colorimeter analysis).File | Dimensione | Formato | |
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