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fjykdxlss

木虫 (小有名气)

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[求助] 求教：关于壳聚糖接枝聚苯胺的一篇文章的翻译问题。。。

This experiment demonstrates that PANI is grafted onto chitosan chain. It is worth remaining that the experimental procedure ensures the removing of free PANI.
Moreover, the degree of substitution of the chitosan amino group seems to be relatively small based on the fact that the peak assigned to this monosubstituted unit (at 4.94 ppm) is included within the H-1 signal (at 4.80 ppm). Moreover, it cannot be
calculated from the integral of the signal assigned to protonated amine group of PANI due to the fact the ratio of ionized groups is hardly known,even if it should theoretically be 50 mol%. Under these considerations, we assume that few long chains
of PANI are grafted onto the chitosan backbone based on the small degree of substitution and the quantity of grafted PANI

[ Last edited by fjykdxlss on 2011-5-24 at 21:18 ]

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1楼2011-05-24 21:16:06

已阅回复此楼关注TA 给TA发消息送TA红花 TA的回帖

fjykdxlss

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The assignment of this triplet is conﬁrmed by its disappear-
ance when D2O was added (resulting of an exchange of proton by deuterium)

为什么D与H 交换会导致三连峰消失。