In-situ SAXS/WAXS investigations of ureidopyrimidinone functionalized semi-crystalline poly(ethylene-co-butylene) supramolecular polymers

In-situ SAXS/WAXS investigations of ureidopyrimidinone functionalized semi-crystalline poly(ethylene-co-butylene) supramolecular polymers
复制标题

脲基嘧啶酮官能化半结晶聚(乙烯-共-丁烯)超分子聚合物的原位 SAXS/WAXS 研究

DOI:
10.1016/j.polymer.2021.123875
复制
发表时间:
2021
期刊:
影响因子:
4.6
通讯作者:
S. Barrau
S. Barrau
中科院分区:
化学2区
文献类型:
--
作者:
M. Louati;J.-F. Tahon;D. Fournier;G. Stoclet;S. Aloise;M. Takao;M. Takeshita;J.-M. Lefebvre;S. Barrau

文献摘要

参考文献

相似文献

研究了基于多个氢键的超分子共聚物组装体的结构演变随温度的变化。脲基嘧啶酮官能化半结晶聚(乙烯-共-丁烯) (PEB-(L-UPy)2) 已通过原位 WAXS 和 SAXS 实验进行了表征。结晶度和晶体形式的性质与乙烯序列有关。与未功能化的 PEB 相比,我们特别关注氢键网络对结构排列的影响。在高达 80 °C 的温度下,WAXS 可以检测到相邻 UPy 二聚体之间存在面内排列的晶域。 SAXS 数据反映了在整个温度范围内稳定的 L-UPy 聚集体的存在。这些基于 UPy 的聚集体的相关性在 PEB 晶体熔化温度 (Tm) 之前一直有效。超过 Tm 后,大分子迁移率的增加会减少相互作用域的数量,因此意味着聚集体的去相关。
The structural evolution as a function of temperature of a supramolecular copolymer assembly based on multiple hydrogen bonds has been investigated. Ureidopyrimidinone functionalized semi-crystalline poly(ethylene-co-butylene) (PEB-(L-UPy)2) has been characterized by means of in situ WAXS and SAXS experiments. The crystallinity and the nature of crystal forms are associated to the ethylene sequences. Special attention has been paid to the impact of the hydrogen bonding network on the structural arrangements, by comparison to the unfunctionalized PEB. The presence of crystalline domains of in-plane arrangement between neighboring UPy dimers is detected by WAXS up to 80 °C. The SAXS data reflect the presence of L-UPy aggregates stable on the whole temperature range. The correlation of these UPy-based aggregates is effective until the PEB crystal melting temperature (Tm). Beyond Tm, the increase of the macromolecular mobility reduce the number of domains in interaction and, in consequence, implies a decorrelation of the aggregates.
DOI: 10.1021/ma201303s
发表时间: 2011-09-13
期刊: MACROMOLECULES
影响因子: 5.5
作者:
Appel, Wilco P. J.;Portale, Giuseppe;Meijer, E. W.
通讯作者: Meijer, E. W.
DOI: 10.1021/ja020123e
发表时间: 2002-07
影响因子: 15
作者:
K. Yamauchi;Jeremy R. Lizotte;D. Hercules;M. Vergne;T. Long
通讯作者: K. Yamauchi;Jeremy R. Lizotte;D. Hercules;M. Vergne;T. Long
DOI: --
发表时间: 1964
期刊:
影响因子: --
作者:
V. F. Holland
通讯作者: V. F. Holland
DOI: 10.1021/ma0358576
发表时间: 2004
期刊: Macromolecules
影响因子: 5.5
作者:
Zhiqiang Su;Ying Zhao;Yizhuang Xu;Xiuqin Zhang;Shan;Dujing Wang;Jinguang Wu;C. Han;Duan
通讯作者: Duan
通过固态核磁共振和 X 射线衍射检测乙烯共聚物中的单斜晶
DOI: 10.1021/ma030132n
发表时间: 2003
期刊: Macromolecules
影响因子: 5.5
作者:
Weiguo Hu;E. Sirota
通讯作者: E. Sirota