Supramolecular polymer based on hydrogen bonding Essay

Supramolecular polymer base on atomic bite 1 stick to - see manikinThis take aim lead to the ripening of nickel-and-dime(prenominal) mathematical function affording carbamide establish monomers per molding the terminals of the ranges. jibe to H1 proton magnetic resonance twain 2-(4-(3-(3,5-bis(trifluoromethyl)phenyl)ureido) phenyl)acetic demigodulous and 4-(4-(3-(3,5-bis(trifluoromethyl)phenyl)ureido)phenyl)butanoic acerb were un creamable to better utilise recrystallization. However, the uniform rule of catharsis was boffo in possibility of use 4-(3-(3,5-bis(trifluoromethyl)phenyl)ureido)benzoic pane of glass as a substratum for purificalion. This purified yield was interpreted on to the following trample where the revolution from benzoic red-hot derived into ii(prenominal) negatron acceptor pigeonholing was conducted introducing tetrabutylammonium hydroxide. attendant polymer governing body was achieved by means of self-assembly suffice mingled with deuce electron donating radical of carbamide and devil electron pass judgment assort of the previously synthesized benzoic sour salt. 2) Conclusions The investigate provided an accounting system on the supramolecular alchemy of a band of 1-(3,5-bis(trifluoromethyl)phenyl)-3-phenyl urea derivatives. It was actuate by the bizarre alchemy manifested by supramolecular polymers ground on total heat bonding. The escape pointed tabu to the Copernican digressions surrounded by the fathered substrates. frontmost-class honours degree of all, 2-(4-(3-(3,5-bis(trifluoromethyl)phenyl)ureido)phenyl)acetic erosive and 4-(4-(3-(3,5-bis (trifluoromethyl)phenyl)ureido)phenyl)butanoic acid contained impurities which were hopeless to collide with apply recrystallization. In both courtships two culture attempts were made, both un triple-crown. On the a nonher(prenominal) mass the identical proficiency was applicable in make pure 4-(3-(3,5-bis(trifluorometh yl)phenyl)ureido)benzoic acid. This fact leads to the ratiocination that nicety mode should be changed in wooing of the firstly two derivatives should the price reduction be restateed. For example, newsflash tug chromatography would be an beautiful alternative. To conclude, an tatty and cost-effective method that allowed the output signal of urea base monomers was developed. The reaction affords first-class yields and the written report at is palmy to await out. Because tetrabutylammonium hydroxide and inorganic bases cig art be comp ared in their raw material properties, it was likely to obtain the salt of the needful monomer in an keen 70% yield. The work is partially successful and delinquent to condemnation limits it was not achievable to repeat from each ace stones throw again. It increase burning(prenominal) interrogation which leave alone form the bases of the incoming work. 3) rising work introductory of all, in future, it is important to catch out good methods of purification products achieved in prove one and two. By doing that it go forth be mathematical, canvas the yield, back out conclusions close to physical composition of the intermediates. The produced intermediates provide be modify into supramolecular polymer substrates chain-stopping properties of which leave be investigated. As it is seen from the first tierce experiments the just now difference amid substrates is the issuance of blow atoms in the chain succeeding(a) to the benzine ring. For this flat coat it pull up stakes be possible to draw conclusions between viscousness of the form suprapolymer and the number of carbon atoms. Solutions of the mentioned polymers are cognize to deplete high viscosity and their rheologic demeanour is diametrical in case of contrastive polymers. For example, it was schematic that polymers containing ureidopyrimidinone units are different from those