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黃二波新蟲 (初入文壇)
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[求助]
碳納米管接枝聚乳酸
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| 文獻(xiàn)Single-Walled Carbon Nanotubes and Multiwalled Carbon Nanotubes Functionalized with Poly(L-lactic acid): a Comparative Study中在講酰氯化的CNTs與PLA接枝的反應(yīng)時(shí),這樣做:將溶有PLA的二氯甲烷溶液與碳納米管混合后,加入三乙胺,然后氮?dú)獗Wo(hù)下70℃反應(yīng)48h。二氯甲烷沸點(diǎn)40℃,70℃是為了什么呢,反應(yīng)是在燒瓶壁上進(jìn)行嗎?還是我理解錯(cuò)了?原文:After cooling to room temperature, the excess SOCl2 was evaporated in a rotavapor to afford crude CNT-COCl (100 mg), which was resuspended in a solution of PLLA (500 mg) in CH2Cl2 (15 mL). Upon complete solution of the polymer, Et3N (1 mL) was carefully dropped over the mixture (exothermic reaction) and the dispersion was stirred for 48 h at 70 °C under nitrogen atmosphere. |
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