The author of 《Grafting of Polymer Brushes from Xanthate-Functionalized Silica Particles》 were Ohno, Kohji; Yahata, Yoshikazu; Sakaue, Motokazu; Ladmiral, Vincent. And the article was published in Chemistry – A European Journal in 2019. COA of Formula: C6H12O The author mentioned the following in the article:
Monodisperse silica particles (SiPs) were surface-modified with a newly designed silane coupling agent comprising a triethoxysilane and an alkyl halide, namely, 6-(triethoxysilyl)hexyl 2-bromopropionate, which was further treated with potassium O-Et dithiocarbonate (PEX) to immobilize xanthate mols. on the particle surfaces. Surface-initiated macromol. design via interchange of xanthates (MADIX) polymerization of vinyl acetate (VAc) was conducted with the xanthate-functionalized SiPs. The polymerization was well controlled and produced SiPs coated with poly(vinyl acetate) (PVAc) with a well-defined target molar mass and a graft d. of about 0.2 chains nm-2. Dynamic light scattering and TEM measurements revealed that the hybrid particles were highly dispersible in good solvents without any aggregation. The PVAc brushes were hydrolyzed with hydrochloric acid to produce poly(vinyl alc.) brushes on the SiP surfaces. In addition, the number of xanthate mols. introduced on the SiP surfaces could be successfully controlled by adjusting the concentration of PEX. Thus, the SiPs have two functionalities: xanthates able to act as a MADIX chain-transfer agent and alkyl bromide initiation sites for atom transfer radical polymerization (ATRP). By using these unique bifunctional particles, mixed polymer brushes were constructed on the SiPs by MADIX of VAc followed by ATRP of styrene or Me methacrylate. After reading the article, we found that the author used 5-Hexen-1-ol(cas: 821-41-0COA of Formula: C6H12O)
5-Hexen-1-ol(cas: 821-41-0) is a volatile organic compound. Further, it is used to prepare 6-bromo-hex-1-ene by reaction with phosphorus tribromide.COA of Formula: C6H12O
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts