PC pellets (2.0 ×
3.0 × 3.0 mm3) were obtained from a local supplier
in Taiwan. All chemicals
were of analytical grade and used without further purification. Acetonitrile
(99.9% w/w), acetone (≥99.5%), heptane (≥99%), and methanol
(anhydrous, 99%) were obtained from Macron. Chloroform (≥99%
w/w) was purchased from Honeywell. While dichloromethane (99%), deuterated
dimethyl sulfoxide (DMSO-d6, 99.9% atom
D), magnesium oxide (97%), 4-nitroaniline (≥99%), sodium aluminate,
sodium methoxide (25wt % in methanol), and sodium chloride were provided
by Sigma-Aldrich, cyclohexane (≥99.0%) was acquired from J.T.
Baker. Alizarin yellow R sodium salt, calcium oxide (99.95%), phenolphthalein,
and strontium oxide (99.5%) were acquired from Alfa Aesar. Bisphenol
A (97%), bromothymol blue, dimethyl carbonate (99%), and tetrahydrofuran
(99.6%) were purchased from Thermo Fisher Scientific. Meanwhile, octane
(>98%) was obtained from Wako.
3.0 × 3.0 mm3) were obtained from a local supplier
in Taiwan. All chemicals
were of analytical grade and used without further purification. Acetonitrile
(99.9% w/w), acetone (≥99.5%), heptane (≥99%), and methanol
(anhydrous, 99%) were obtained from Macron. Chloroform (≥99%
w/w) was purchased from Honeywell. While dichloromethane (99%), deuterated
dimethyl sulfoxide (DMSO-d6, 99.9% atom
D), magnesium oxide (97%), 4-nitroaniline (≥99%), sodium aluminate,
sodium methoxide (25wt % in methanol), and sodium chloride were provided
by Sigma-Aldrich, cyclohexane (≥99.0%) was acquired from J.T.
Baker. Alizarin yellow R sodium salt, calcium oxide (99.95%), phenolphthalein,
and strontium oxide (99.5%) were acquired from Alfa Aesar. Bisphenol
A (97%), bromothymol blue, dimethyl carbonate (99%), and tetrahydrofuran
(99.6%) were purchased from Thermo Fisher Scientific. Meanwhile, octane
(>98%) was obtained from Wako.