One-Pot Synthesis of Organic-Sulfur-Zinc Hybrid Materials via Polycondensation of a Zinc Salt and Thiols Generated in Situ from Cyclic Dithiocarbonates

Molecules

Bungo Ochiai¹  Hirohisa Konta¹ 

关键词: organic-inorganic hybrid;    nanoparticle;    refractive index;    sulfur;    zinc;    thiol;    polycondensation;    ring-opening;   

DOI  :  10.3390/molecules200815049

来源: mdpi

【 摘 要 】

Soluble organic-sulfur-zinc hybrid polymers were prepared via a one-pot reaction consisting of ring-opening addition and subsequent polycondensation. The first reaction is the nucleophilic ring-opening addition of 2-ethylhexylamine to multifunctional cyclic dithiocarbonates giving multiple thiols in situ. The sequential polycondensation of the in situ generated thiols with Zn(OAc)₂ gave the target hybrid polymers. This one-pot method enabled the use of a shorter amine than the previous polycondensation of Zn(OAc)₂ and purified thiols, which required octadecylamine to obtain a soluble product. The obtained hybrid polymers may be cast as composite films with polystyrene and poly(methyl methacrylate). Owing to the shorter alkyl chain, the calculated n_D values of the products (1.60 or 1.61) are higher than that of the previous product bearing octadecyl chains (1.53).

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.