Ishizu, Koji published the artcileDegree of branching of hyperbranched polystyrenes via a controlled radical mechanism of an inimer: Determination by a kinetic approach, Computed Properties of 3052-61-7, the publication is Journal of Applied Polymer Science (2005), 96(5), 1810-1815, database is CAplus.
We studied, with a kinetic approach, the living nature and degree of branching (DB) of the formation of hyperbranched polystyrene by the free-radical photopolymerization of 2-(N,N-diethyldithiocarbamyl)methylstyrene in benzene. The free-radical polymerization proceeded with a living radical mechanism. Subsequently, we treated the kinetics of the initiation and propagation steps of the active A* and B* (side-group) sites with model compounds The degradation rates of two types of dithiocarbamate groups at the A and B sites agreed well with theor. trends for C-S bond dissociation energies predicted by the d. functional theory for model compounds The reactivity of the initiating B* groups was greater than that of the propagating A* groups. DB of the hyperbranched polymers was estimated to be 0.31 with both reaction rates in terms of Mueller’s equation. This result supported the DB value (0.39) estimated from NMR data. The hyperbranched mols. obtained in this work were not perfectly dendritic but had somewhat defective structures.
Journal of Applied Polymer Science published new progress about 3052-61-7. 3052-61-7 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Amide, name is Benzyl diethylcarbamodithioate, and the molecular formula is C12H17NS2, Computed Properties of 3052-61-7.
Referemce:
https://en.wikipedia.org/wiki/Ester,
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