Combination of thermal and photochemical

Moreover, block copolymers with two radically polymerizable monomers can be synthesized with a combination of thermal and photochemical polymerizations. Regarding their utilization in block copolymer synthesis, azocompounds with photoactive benzoin [103,109-111] and azyloximester groups [112] have been described. Two low-molecular weight azo benzoin initiators of the general formula (Scheme 32) were synthe-... 

Quantum yields and product ratios for photolysis of cis- and irons-[Rh(en)2(NH3)Cl] are compatible with the generally accepted dissociative mechanism for this type of reaction. Photolysis of [Rh(en)2(NH3)(OH2)] leads to a photostationary state in which isomerization, racemization of the cis isomer, and water exchange at both cis and trans isomers occur concurrently. This investigation also established parameters for thermal water exchange at the two [Rh(en)2(NH3)(OH2)] cations. The product of photolysis of [Rh(tren)Br2] has a different structure from the product of thermal aquation of this cation. A combination of thermal and photochemical activation has been explored for the trans-[Rh(en)2Br2] cation. ... 

MOR 15] Morris J., Telitel S., Fairfull-Smith K.E. et al, Novel polymer synthesis methodologies using combinations of thermally- and photochemically-induced nitroxide mediated polymerization . Polymer Chemistry, 2015. 

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