Cationic polymerization of β-pinene in the presence of alkylaluminum chlorides as catalysts

Журнал Белорусского государственного университета: Химия

Olga V.Kuharenko¹  Maksim I.Hulnik²  Sergei V.Kostjuk² 

[1] Research Institute for Physical Chemical Problems, Belarusian State University, 14 Lieninhradskaja Street, Minsk 220006, Belarus;Belarusian State University, 4 Niezaliežnasci Avenue, Minsk 220030, Belarus;

关键词: β-pinene;    cationic polymerization;    alkylaluminum chlorides;    controlled cationic polymerization;    electron donor;    proton trap;   

DOI  :  10.33581/2520-257X-2020-2-98-107

来源: DOAJ

【 摘 要 】

Cationic polymerization of β-pinene, a naturally occurring monomer, was studied in the presence of different alkylaluminum chlorides ((iBu)3Al2Cl3, Et3Al2Cl3 и Мe2AlCl) in the solvent mixture dichloromethane/methylcyclohexane (DCM/MCH) at –78 °C. The effect of catalyst concentration [(iBu)3Al2Cl3] and various electron donors on the polymerization rat and molecular-weight characteristics of synthesized poly(β-pinenes) was investigated. Controlled cationic polymerization of β-pinene was carried out in the presence СumCl/Мe2AlCl initiating system. The polymers with controlled molecular weight up to 6400 g/mol and relatively low polydispersity (Mw/Mn < 1.42) were synthesized. Microstructure of synthesized poly(β-pinene) was investigated by 1H NMR spectroscopy.

【 授权许可】

Unknown