Branching in poly(butyl acrylate) (polyBA) systems is a well-accepted process that occurs via two reactions: a bimolecular reaction, intermolecular chain transfer by hydrogen atom abstraction (long chain branching, LCB), and a unimolecular reaction, intramolecular “backbiting” (short chain branching, SCB). The relative amount of each type of branching depends on the monomer-polymer ratio.
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Thickett et al. (2005) studied this question.
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