Details

Autor(en) / Beteiligte

• Lee, Nam Joo
• Kim, Dongseok
• Yoo, Kwangho
• Yu, Yeji
• Kim, Byeong‐Su
• Kim, Jeung Gon

Titel

Divergent strategy for the synthesis of bottlebrush polymers via postpolymerization modification of macromonomer

Ist Teil von

• Journal of polymer science (2020), 2020-11, Vol.58 (22), p.3237-3244

Ort / Verlag

Hoboken, USA: John Wiley & Sons, Inc

Erscheinungsjahr

2020

Quelle

Wiley Online Library - AutoHoldings Journals

Beschreibungen/Notizen

• A simple and divergent synthetic strategy of bottlebrush polymers (BBPs) is presented, consisting of postpolymerization modification of a macromonomer and grafting‐through polymerization. Beginning with a single macromonomer, its direct modification could build a library of macromonomers with an identical chain length, thus guaranteeing the precision in the synthesis of BBPs. In this study, a newly designed norbornenyl‐terminated poly(methyl acrylate) (NB‐PMA) is proposed as a chemically robust template. Ti‐mediated transesterification of NB‐PMA successfully produces structurally diverse polyacrylates while maintaining the terminal norbornenyl group intact. All macromonomers obtained from transesterification possess a good grafting‐through ring‐opening metathesis polymerization reactivity, furnishing homo, random, and block BBPs in a controllable manner. Moreover, atomic force microscopy analysis supports the controlled side‐chain length distribution in the resulting BBPs. A divergent strategy for the synthesis of bottlebrush polymers is presented. Post‐polymerization modification of macromonomer and sequential ring‐opening metathesis polymerization produces a set of bottlebrush polymers from one parent template polymer, herein norbornene‐terminated poly(methyl acrylate).