Sentence examples for radical ring from inspiring English sources
Radical ring opening polymerization is a powerful tool to achieve a polyester via radical polymerization.
The polymerization is firstly initiated by the epoxide radical ring opening catalyzed by Cp2Ti III Cl generated in situ via the reaction of Cp2TiCl2 with Zn.
Radical-clock hydantoins bolstered this mechanism because the hydroxylation event occurs faster than the rate of cyclopropyl radical ring opening.
Product analyses (see Schemes 4 and 5) implied that phenanthridinyl 74 was the main intermediate from iminyl radical ring closures onto aromatic acceptors.
The doxyl lipids have a free radical ring placed at carbons 5, 8, 10, 12, and 16 of the 18-carbon stearate chain.
Iminyl radical ring closures onto aromatic acceptors, for example, 55, were also easily accomplished under MAOS conditions leading to quinoline derivatives, phenanthridines 56, benzonaphthiridines 57, benzothienoquinoline 58, indolopyridine derivative 59, and tetrahydroindoloquinoline 60 (Scheme 11).
These cyclic arylene disulfide) oligomers can readily undergo free radical ring-opening polymerization at elevated temperatures in the melt.
Polycaprolactone is a semicrystalline polyester prepared ring-opening polymerization or via free radical ring-opening polymerization of ε-caprolactone and 2-methylene-1-3-dioxepane, respectively.
This chapter deals with radical ring-opening polymerization (radical ROP), which provides us with a strategy for synthesizing heteroatom-containing polymers by radical processes.
The polymerizations are initiated by the epoxide radical ring-opening catalyzed by Cp2Ti III Cl which is generated in situ via the reaction of Cp2TiCl2 with Zn.
Besides conventional condensation polymerization technique, some other methods have been developed, such as ring-opening polymerization of cyclic esters and the free radical ring-opening polymerization of cyclic ketene acetals, in order for their synthesis to overcome the inherent disadvantages of low molecular weight, property modification, difficulty of processing, and others.
