At first, PAAc-g-GG was synthesized by microwave-promoted free radical initiation method using cerric (IV) ammonium nitrate (CAN) as redox initiator and characterized by elemental analysis, FTIR, DSC-TGA, 13C NMR, biodegradation and viscosity study.
The specimens were shot peened to represent the component condition and to suppress free surface initiation.
Lithium and sodium salts of methacrylic acid were prepared and polymerised by free radical initiation.
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Hydrogels were polymerized by free radical initiation under cytocompatible doses of long wavelength ultraviolet light in the presence of water-soluble photoinitiators (lithium acylphosphinate, LAP, and 2-hydroxy-1-[4- 2-hydroxyethoxy phenyl]-2-methyl-1-propanone, Irgacure 2-hydroxy-1-[4- 2-hydroxyethoxy phenyl]-2-methyl-1-propanone
Here, the short-term effects of encapsulation on cell survival appear minimal and similar to that observed in other hydrogels formed by free radical initiation, indicating that this new hydrogel system could support cell culture or delivery in various experimental applications.
Free-radical initiation of the solvating copolymer improves the mechanical properties while reducing still the crystallinity and melting point.
Several unsaturated polyethers have been prepared by a polycondensation route, from α, ω dihydroxy oligoethers, and cross-linked by free-radical initiation.
When defining an average stress criterion for the free edges delamination initiation in composite laminates, assumptions have to be made with regard to the average interlaminar normal stress contribution.
Such regularization methods, which describe interactions between points, provide some general properties (including objectivity and the non-alteration of a uniform field) as well as drawbacks (damage initiation, free boundary).
