Title : ( Chiral phosphoric triamide‐based polymers for enantioseparation )
Authors: Fatemeh Karimi Ahamadabad , Mehrdad Pourayoubi , Hadi Bakhshi ,Access to full-text not allowed by authors
Abstract
Novel optical isomers of phosphoramide-methacrylate monomers were synthesized and used for the preparation of corresponding polymers and hydrogels as chiral absorbents. In order to direct enantioseparation, two simple and inexpensive methods were designed: (a) immobilization of the chiral polymers on glass beads as packing material for the separation columns and (b) filling of chiral hydrogels in teabags to fabricate separation bags. The specific rotations for R- and S-monomers were +22.0° and − 21.8°, while those for R- and S-polymers were + 20.8° and − 22.1°, respectively. The enantioseparation of (±)-α-methylbenzylamine, DL-alanine, DL-valine, DL-tartaricacid, DL-phenylalanine, and omeprazole was evaluated. The maximum enantioseparation (optical purity) of 97% was observed for (±)-α-methylbenzylamine by S-hydrogel. Chiral hydrogels resulted in enantioseparations with higher purities (up to 97%) comparing to the chiral polymers, but in longer times (2–3days). The desorption process easily occurred from the absorbed columns or bags.
Keywords
, Phosphoramide-methacrylate monomers, enantioseparation, chiral polymer and chiral hydrogel.@article{paperid:1074881,
author = {Karimi Ahamadabad, Fatemeh and Pourayoubi, Mehrdad and Hadi Bakhshi},
title = {Chiral phosphoric triamide‐based polymers for enantioseparation},
journal = {Journal of Applied Polymer Science},
year = {2019},
volume = {136},
number = {41},
month = {November},
issn = {0021-8995},
pages = {48034--48034},
numpages = {0},
keywords = {Phosphoramide-methacrylate monomers; enantioseparation; chiral polymer and chiral hydrogel.},
}
%0 Journal Article
%T Chiral phosphoric triamide‐based polymers for enantioseparation
%A Karimi Ahamadabad, Fatemeh
%A Pourayoubi, Mehrdad
%A Hadi Bakhshi
%J Journal of Applied Polymer Science
%@ 0021-8995
%D 2019