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大四寫論文金蟲 (正式寫手)
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In both methods, polymerization proceeded homogeneously throughout the reaction and gave clear and highly viscous polymer solutions, which precipitated in a tough, fiber-like form when the obtained viscous polymer solutions were poured into methanol. The obtained PAs exhibited inherent viscosities in the range 0.35– 0.85 dL g-1 showing that the resultant polymers had moderate molecular weight. The structure of the PAs was confirmed by FT-IR and 1H-NMR spectroscopy analysis. |
捐助貴賓 (著名寫手)
商家已經(jīng)主動(dòng)聲明此回帖可能含有宣傳內(nèi)容| 在兩種方法中,聚合作用都貫穿整個(gè)反應(yīng),而且給出了清晰且高粘性聚合物溶液,當(dāng)?shù)谷爰状,這些性聚合物溶液沉淀,變成堅(jiān)韌的纖維狀形態(tài)。反應(yīng)生成的對(duì)氨基水楊酸,展現(xiàn)出其固有的粘性,粘性范圍在0.35dL/g–0.85 dL/g, 這表明生成的聚合物的分子重量比較適中。通過波譜解析發(fā)(紅外光譜和核磁共振氫譜)對(duì)氨基水楊酸的結(jié)構(gòu)進(jìn)行了確定。 |
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