Macromol. React. Eng. 11/2012

Microreactor Technology in Lithium Chemistry

“…A significant amount of additives such as LiCl is often used to suppress such side reactions. However, the use of flow microreactors enables the anionic polymerization of tert-butyl acrylate at −20 • C, and the amount of LiCl can be significantly reduced while keeping a narrow molecular weight distribution [116]. Moreover, block copolymerization reactions of a reactive polymer chain end with an alkyl methacrylate can be also achieved by using an integrated flow micoreactor to obtain a block copolymer with a narrow molecular weight distribution.…”

Anionic polymerizations in a microreactor

“…55 The transferring anionic polymerization from a batch reactor into a microreactor provided "mild" reaction conditions (−78 °C vs. 0 °C, in a polar solvent), high level control of polymerizations, and scale-up polymer synthesis. [56][57][58] Anionic polymerization in a microreactor has achieved great advances and some examples were nicely mentioned in the previous reviews. [59][60][61][62][63][64] More and more microreactors with varied mixers and reactors were applied to anionic polymerization.…”

Synthesis of high molecular weight poly(styrene-b-methyl methacrylate) using a plug flow reactor system by anionic polymerization

“…14 Many studies on anionic polymerizations of styrene, styrene derivatives, and alkyl methacrylate to homopolymers and block copolymers in THF have been performed using flow reactors. [15][16][17][18][19][20][21] In particular, Yoshida & Nagaki et al demonstrated anionic block copolymerization (M n 16,900 g·mol -1 ) of styrene and alkyl methacrylate using a micro flow reactor. 16 For practical applications in the industrial field, such as anti-reflective coating materials and nano-patterning in PSb-PMMA, block copolymers with molecular weights greater than 100×10 3 g·mol -1 are necessary to be produced in large scale.…”