The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Hydrolytic degradation ability is an intriguing characteristic of poly(l-lactide) (PLLA) and it has been intensively investigated recently. However, the microstructure evolution of PLLA during the early stage of the hydrolytic degradation process is neglected. In this work, amorphous PLLA was hydrolyzed in alkaline media at temperatures from 40 to 60 °C. The variations of weight loss and molecular...
Although previous work has already shown that the presence of functionalized multiwalled carbon nanotubes (FMWCNTs) induced the great improvement of fracture toughness of an immiscible polymer blend, there is not exact evidence to show that the improvement of fracture toughness is only attributed to the improvement of interfacial adhesion resulting from the selectively distributed FMWCNTs at the interface...
The current study synthesized amphiphilic thermal/pH-sensitive block copolymers PNiPAAm-b-PHpr by condensation polymerization of trans-4-hydroxy-l-proline (Hpr) initiated from hydroxy-terminated poly(N-isopropylacrylamide) (PNiPAAm) as the macroinitiator in the presence of the catalyst, SnOct 2 . 1 H NMR, FTIR, and gel permeation chromatography (GPC) characterized these copolymers...
In this study, dilute Nafion solutions consisting of solvents with various dielectric constants ɛ and solubility parameters δ, i.e. N,N′-dimethyl acetamide, N,N′-dimethyl formamide, N-methyl formamide, methanol–water mixture (4/1g/g), ethanol–water mixture (4/1g/g), and isopropanol–water mixture (4/1g/g), were freeze dried and the conformations of Nafion molecules in dilute solutions were observed...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.