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Whitewater RAFTing: High‐molecular‐weight (HMW) (co)polymers can be formed using ARGET ATRP with alkyl pseudohalides as initiators and chain‐transfer agents. This system works with parts‐per‐million quantities of copper(I) catalyst whilst retaining excellent control over molecular weight, molecular weight distribution, and chain‐end functionality. Copper wire (see picture) can be used as reducing...
The thermal properties of a number of polyphosphazene random and block copolymers synthesized by the anionic polymerization of phosphoranimines have been examined by differential scanning calorimetry and correlated with variable-temperature wide-angle X-ray scattering. These studies show the effect of structure, molecular weight, composition, side groups and thermal history on the thermal transitions...
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