One-pot synthesis of sequence-controlled macromonomers <i>via</i> living anionic addition reaction and subsequent acyclic diene metathesis polymerization.

ABSTRACT: We developed a new synthetic approach for sequence-controlled polymers through a 1 : 1 addition reaction, living anionic addition reaction (LAAR) of 1,1-diphenylethylene (DPE) derivatives and acyclic diene metathesis (ADMET) polymerization. Divinyl-functionalized sequence-controlled BAAB-type oligomers were synthesized in high yield by sequentially reacting potassium naphthalenide (K-Naph) with 1,1-bis(4-tert-butyldimethylsilyloxyphenyl)ethylene (OSi, A), DPE (H, B), and an alkyl halide possessing a vinyl group in one pot. Five covalent bonds were quantitatively formed during the reactions, so the desired symmetrical oligomers were easily isolated without tedious purification such as column chromatography. The following ADMET polymerization of the resulting divinyl-functionalized ol

SUBMITTER: Nishijima T 

PROVIDER: S-EPMC12560833 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature