Characterization of cellulose II nanoparticles regenerated from 1-butyl-3-methylimidazolium chloride
Characterization of cellulose II nanoparticles regenerated from 1-butyl-3-methylimidazolium chloride
复制标题
由 1-丁基-3-甲基氯化咪唑鎓再生的纤维素 II 纳米颗粒的表征
DOI：
10.1016/j.carbpol.2013.02.003
复制
发表时间：
2013-05-15
影响因子：
11.2
通讯作者：
Wu, Qinglin
中科院分区：
文献类型：
--
作者：
Han, Jingquan;Zhou, Chengjun;Wu, Qinglin
使用 1-丁基-3-甲基氯化咪唑鎓，然后高压均质，由微晶纤维素 (MCC) 和棉花制备包括细长纤维和球形结构的再生纤维素纳米颗粒 (RCN)。 RCN 的晶体结构是纤维素 II，与起始材料的纤维素 I 形式相反。此外，RCN 的结晶度和晶粒尺寸降低。由棉花和MCC生产的细长RCN的平均长度分别为123+/-34和112+/-42nm，平均宽度分别为12+/-5和12+/-3nm。 MCC 的球形 RCN 的平均直径为 118 +/- 32 nm。各种 RCN 的维度都很好地符合非对称对数正态分布函数。 RCN 具有两步热解过程，与原料 MCC 和棉花的一步过程不同。 (C) 2013 Elsevier Ltd. 保留所有权利。
Regenerated cellulose nanoparticles (RCNs) including both elongated fiber and spherical structures were prepared from microcrystalline cellulose (MCC) and cotton using 1-butyl-3-methylimidazolium chloride followed by high-pressure homogenization. The crystalline structure of RCNs was cellulose II in contrast to the cellulose I form of the starting materials. Also, the RCNs have decreased crystallinity and crystallite size. The elongated RCNs produced from cotton and MCC had average lengths of 123 +/- 34 and 112 +/- 42 nm, and mean widths of 12 +/- 5 and 12 +/- 3 nm, respectively. The average diameter of spherical RCNs from MCC was 118 +/- 32 nm. The dimensions of the various RCNs were all well fitted with an asymmetrical log-normal distribution function. The RCN has a two-step pyrolysis, different from raw MCC and cotton that have a one-step process. (C) 2013 Elsevier Ltd. All rights reserved.