特殊型界面活性剤の研究 (第2報)
n-ドデシルアミンとポリアクリルアミドとのテロマーの合成と性質について
1974 年 23 巻 12 号 p. 797-803
詳細
1974 年 23 巻 12 号 p. 797-803
Solution polymerization of acrylamide was carried out using n-dodecyl amine as a solvent and sodium methoxide or benzoyl peroxide as an initiator. The chemical structures of the obtained telomers are as follows :
by anionic telomerization (LAA series)
C12H25-N- (CH2-CH2-CONH) -m (CH2-CH) n-H-CONH2- (CH2-CH2-CONH) -m' (CH2-CH) -n'H-CONH2 (m+m') /P_??_ 0.8
by radical telomerization (LAR series)
C11H23-C-H-NH2- (CH2-CH) nH-CONH2
The degree of polymerization of obtained telomers was as follows ; LAA series =4.722.0, LAR series =1.23.6.
The chemical structures of these telomers were determined by elementary analysis, IR spectrum, Rimini test and hydrolysis test [LAA series were hydrolyzed about 20% of acrylamide unit (monomeric unit) by 0.5 N-NaOH aqueous solution]. Relation between cmc and Pn of LAA series are as follows ;
log cmc=0.051 Pn-1.55
The aqueous solutions of low Pn telomers (LAA and LAR series) have low surface tension, low foamability, low dispersing power (CaCO3), high emulsifying (benzene, gasoline) and high solubilizing power (Orange OT).
