Abstract
Nd(naph) 3-BuLi system was used to polymerize methyl methacrylate (MMA) at low temperature (−22 °C). Poly(methyl methacrylate) (PMMA) with a very high molecular weight (2 × 10 6) was obtained. The effects of ligand, Li Nd molar ratio, catalyst concentration, solvent, temperature and polymerization time were studied. The results showed that both low temperature (−22 °C) and neodymium naphthenate were indispensable to prepare high molecular weight PMMA to high conversion.
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