The role of composition: natural materials vs. synthetic composites: general discussion.

The role of composition: natural materials vs. synthetic composites: general discussion.
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成分的作用:天然材料与合成复合材料:一般讨论。

DOI:
10.1039/d0fd90017f
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发表时间:
2020
影响因子:
3.4
通讯作者:
Bermudez Ureña E
Bermudez Ureña E
中科院分区:
化学2区
文献类型:
--
作者:
Bermudez Ureña E

文献摘要

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Christian Kuttner开始讨论Maria Helena Godinho的论文:你如何量化顺序,我想你用NMR?此外,您提到了使用顺序参数来描述分层结构中的顺序程度,但是对于3D有序系统来说,这个参数是不需要的。您能否评论一下,在这样的系统中,使用二维阶数参数来量化阶数是否有用?Maria Helena Godinho回应道:谢谢你提到这一点。如果测量LC系统的宏观性质(可以使用不同的技术,包括核磁共振光谱),通常可以定量地确定在液晶溶液的给定点上纤维素半刚性大分子(棒)的取向顺序参数S。
Christian Kuttner opened a discussion of the paper by Maria Helena Godinho: How do you quantify the order, I suppose you use NMR? Also, you mentioned the use of an order parameter to describe the degree of order in layered structures–but this parameter is de ned for 3D ordered systems. Could you please comment on whether it would be useful to use the 2D order parameter instead to quantify order in such systems?Maria Helena Godinho responded: Thank you for mentioning this point. An orientational order parameter, S, of the cellulose semi-rigid macromolecules (rods), at a given point of the liquid crystalline solution, can usually be quanti ed if a macroscopic property of the LC system is measured (different techniques, which include NMR spectroscopy, can be used).