Solid-state NMR was used to investigate the miscibility of LLDPE/polyamide-6 blends. Two different blends B1 and B2, obtained with LLDPE only and with LLDPE functionalized with diethyl succi- nate, respectively, as well as their individual components, were characterized by means of 13C selective tech- niques. Measurement of 1H spin-lattice relaxation times in both laboratory and rotating frames allowed the miscibility at a molecular level to be investigated for both blends: in B1 the domains of the different compo- nents are on average larger than 100 – 200 A ̊ , whereas in B2, where two different fractions could be separated on the basis of their solubility in heptane, the average linear dimensions of the insoluble fraction are between 20 and 200 A ̊ .
|Autori:||Geppi M; Forte C; Passaglia E; Mendez B|
|Titolo:||Miscibility of functionalized polyolefins with polyamide-6 as detected by solid-state NMR|
|Anno del prodotto:||1998|
|Digital Object Identifier (DOI):||10.1002/(SICI)1521-3935(19980901)199:9<1957::AID-MACP1957>3.0.CO;2-N|
|Appare nelle tipologie:||1.1 Articolo in rivista|