特殊型界面活性剤の研究 (第3報) : スチレンおよび無水マレイン酸と1-ドデカンチオールとのコテロマーおよびそのアンモニウム塩の合成と性質について

概要

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Solution copolymerization of styrene (St) with maleic anhydride (Man) was carried out using 1-dodecanethiol (RSH) -benzene as solvents and benzoyl peroxide (BPO) as an initiator. The chemical structure of the obtained co-telomer was determined by molecular weight, elementary analysis IR spectrum and is as follows; _??_ From these results, it was made clear that the obtained co-telomer was the alkyla ted alternating copolymer. These co-telomers were treated with ammonia in acetone to obtain the corresponding ammonium salts. The surface active properties of these ammonium salts such as surface tension, dispersing power (CaCO3) and foaming power were measured, and the results are as follows; γ_??_40dyne/cm (0.1wt%), cmc=0.0030.004wt%. on dispersing power, they showed good values at the low concentration. The effect of Pn on the surface active properties of these co-telomers (Pn510) was hardly recognized.
社団法人日本油化学会の論文