Copolycarbonate
一种共聚碳酸酯、碳原子数的技术，应用在共聚碳酸酯领域，能够解决异山梨醇含量少、耐热性低、分子量低等问题
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Examples
Embodiment 1
[0333] 436 parts of isosorbide (hereinafter referred to as ISS), 65 parts of 1,8-octanediol (hereinafter referred to as OD), 750 parts of diphenyl carbonate (hereinafter referred to as DPC) and 0.8×10 -2 Parts tetramethylammonium hydroxide and 0.6 x 10 -4 Parts of sodium hydroxide were heated to 180°C under a nitrogen atmosphere to melt it. Thereafter, the degree of reduced pressure was adjusted to 13.4 kPa over 30 minutes. Thereafter, the temperature was raised to 250° C. at a rate of 60° C. / hr, and the temperature was maintained for 10 minutes, and then the degree of reduced pressure was reduced to 133 Pa or less over 1 hour. The reaction was carried out under stirring for a total of 6 hours. After the reaction was completed, it was discharged from the bottom of the reaction tank under nitrogen pressure, and was cut with a granulator while cooling in a water tank to obtain pellets. The evaluation results are described in Table 1.
Embodiment 2
[0335] Except having used 441 parts of ISS, 66 parts of 1,9- nonanediol (it abbreviates as ND hereafter), and 750 parts of DPCs as a raw material, the operation completely the same as Example 1 was performed, and the same evaluation was performed. The results are described in Table 1.
Embodiment 3
[0337] Except having used 71 parts of 1, 10- decanediol (it abbreviates DD hereafter) instead of ND, it carried out completely the same operation as Example 2, and performed the same evaluation. The results are described in Table 1.
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Abstract
Description
Claims
Application Information
- IPC
- C08G64/02; C08G64/18; C08G63/64
- CPC
- C08G63/64; C08G64/0208
- Inventors
- 本吉哲也; 今里健太