Long-Chain Modification of the Tips and Inner Walls of MWCNTs and Their Nanocomposite Reverse Osmosis Membranes was written by Li, Qing;Yang, Dengfeng;Liu, Qingzhi;Wang, Jianhua;Ma, Zhun;Xu, Dongmei;Gao, Jun. And the article was included in Membranes (Basel, Switzerland) in 2022.Product Details of 3903-40-0 This article mentions the following:
Multi-walled carbon nanotubes (MWCNTs) were modified on the tips and inner walls by 12-chloro-12-oxododecanedioic acid-Me ester groups and then added to the polyamide composite membranes to prepare MWCNT-CH2OCOC12H23O2 membranes for desalination. The characterization results of transmission electron microscopy, Fourier transform, IR transform, and thermogravimetric anal. showed that the 12-chloro-12-oxododecanedioic acid-Me ester group was successfully grafted to the entrances and inner walls of the MWCNTs. The performance of the MWCNTs’ composite membranes was evaluated by SEM, contact angle, and filtration test. The modified membrane morphol. is more uniform, and there is no structural damage. The grafting of carbon nanotubes with Me 12-chloro-12-oxydodecyldicarboxylate could improve the hydrophilicity of the membrane. Under identical conditions, the water flux of MWCNT-CH2OCOC12H23O2 membranes was higher than that of the pristine carbon nanotube’s membrane, and the desalination rate was also slightly improved. In the experiment, the researchers used many compounds, for example, 12-Methoxy-12-oxododecanoic acid (cas: 3903-40-0Product Details of 3903-40-0).
12-Methoxy-12-oxododecanoic acid (cas: 3903-40-0) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Product Details of 3903-40-0
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics