OCH3 CH2?CH-CH 0-Si-(CH2)17CH3 OCH3 SO3 H CH2?CH-CH2? CH2?CH-CH2? CH?CH2?CH-CH2?CH-CH2? CH2 N(ch3)3 ClO (CH2 )17 CH3 OCH3 Si OCH3 CH2 ? CH CH2 ? CH? CH2 ? CH CH2 ? CH CH2 ? SO3 H - + CH2 ? CH CH2 ? CH2 ? CH CH2 ? CH2 N(CH3 )3 + Cl-