A kind of ionic liquid catalyst for synthesizing bio-based polycarbonate and method for synthesizing bio-based polycarbonate
A technology for synthesizing bio-based polycarbonate, applied in the field of catalysis, can solve the problems of difficulty in synthesizing high-molecular-weight bio-based polycarbonate, difficult activation of internal hydroxyl groups, low internal hydroxyl activity, etc., so as to shorten the reaction time and improve the reaction activity. , the effect of high catalytic activity
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Embodiment 1
[0036] Take dihydroxyl compound and carbonic acid diester as the equation of raw material synthesis polycarbonate reaction:
[0037]
Embodiment 2
[0041] The difference with Example 1 is that the catalyst used is 5×10 -5 mol (relative to the amount of isosorbide substance) of tetrabutylphosphinelysine ([P 4444 ][Lys]), the yield of the resulting bio-based polycarbonate was 97%, the number average molecular weight was 85000g / mol, and the molecular weight distribution was 1.54.
Embodiment 3
[0043] The difference with Example 1 is that the catalyst used is 5×10 -5 mol (relative to the amount of isosorbide substance) of tetraethylammonium lysine ([N 2222 ][Lys]), the yield of the obtained bio-based polycarbonate was 96%, the number average molecular weight was 58000g / mol, and the molecular weight distribution was 1.62.
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