Materials
Hydroxyl-terminated poly(dimethylsiloxane) (HO-PDMS-OH,
~60 mPa·s) was purchased from Wacker Chemie AG.
(3-Aminopropyl)triethoxysilane (APTES),
3-glycidoxypropyltrimethoxysilane (GPTMS), dibutyltin dilaurate (DBTB),
ethanol, diiodomethane, and hexadecane were provided by Shanghai Macklin
Biochemical Co., Ltd. Light crude oil samples with a viscosity of
~300 cP were provided by PetroChina. Hydrochloric acid
(HCl), sodium chloride (NaCl), and sodium hydroxide (NaOH) were procured
from Tianjin Damao Chemical Reagent Factory and were of analytical
reagent grade. Peanut oil and pump oil were purchased from local stores.