In 2022,Chen, Yuli; Yang, Shuai; Zhang, Taojun; Xu, Mengdie; Zhao, Jing; Zeng, Minfeng; Sun, Kailang; Feng, Ruokun; Yang, Zhen; Zhang, Peng; Wang, Baoyi; Cao, Xingzhong published an article in Polymer Testing. The title of the article was 《Positron annihilation study of chitosan and its derived carbon/pillared montmorillonite clay stabilized Pd species nanocomposites》.Recommanded Product: 1-Chloro-3-iodobenzene The author mentioned the following in the article:
To establish the structure-properties relations of an organic polymer-inorganic hybrid nanocomposite, insightful investigation of the mols. packing and interfacial interactions is essential. Positron annihilation lifetime spectroscopy (PALS) has been proven as one of the most suitable technique to characterize the free volume structure (mol. packing) of polymer matrixes. However, most of the attentions were paid limitedly in organic polymer-based hybrid systems rather than inorganic-based hybrid systems. Classic spherical model was the most frequently used model in free volume holes size calculation of polymer matrix. In the present study, mol. level micro-defects within inorganic-based hybrid systems encaging polymers and carbon species, i.e. novel biol. macromols. of chitosan and its derived carbon/Al pillared montmorillonite clay (CS/PILC and CS-derived C/PILC) stabilized palladium species hybrid nanocomposites, have been investigated by PALS. Besides the classic spherical model, cuboidal and cylindrical models were used to evaluate the mols. packing behavior within the interlayer space of PILC matrixes encaging of polymers of CS or CS-derived carbons. The layered porous structure of the nanocomposites was also characterized with other methods, such as X-ray diffraction, N2 adsorption/desorption, and high-resolution transmission electron microscopy, etc. The correlations of the microstructure and catalytic properties applied in Sonogashira coupling reactions of the nanocomposites were discussed. In the experiment, the researchers used 1-Chloro-3-iodobenzene(cas: 625-99-0Recommanded Product: 1-Chloro-3-iodobenzene)
1-Chloro-3-iodobenzene(cas: 625-99-0) belongs to organic iodides. Generally organic iodides can be divided into two classes of alkyl iodides and aryl iodides. Typical reactions of alkyl iodides include nucleophilic substitution, elimination, reduction, and the formation of organometallics.Recommanded Product: 1-Chloro-3-iodobenzeneHalogenation of aromatic hydrocarbons is a very important reaction via an electrophilic aromatic substitution.
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com