IR-spectrum evidence of an interaction between functional groups of the 4-pyrrolidonesNot Availabledoi:10.1007/BF00822281R. S. LebedevA. V. DorshunovV. E. VolkovKluwer Academic Publishers-Plenum PublishersSoviet Physics Journal
不要得到太附有任何人,因为附件导致期望,并且期望导致失望。[translate] aIn order to investigate chemical bond or functional groups of the as-prepared PTh, the FT-IR spectrum was employed. 为了调查化学键或和准备的PTh的功能小组, FT-IR光谱被使用。[translate]...
Therefore,thefunctionalgroupspresentinamoleculecanbededucedfromanIRspectrum TwoimportantparametersinallIRspectra: Thefrequencyofthesignal, Theintensityofthesignal,I WhatstructuralfeaturesofamoleculedoandIdependon? Thefunctionalgroupconceptoforganicchemistry IRspectroscopycanidentifyfunctionalgroups!
Spectroscopic control is performed with the aid of an auxiliary adsorbent, which is transparent in the infrared region of the spectrum and has hydroxyl groups on its surface. This method can be employed to determine the content of functional groups, capable of deuterium exchange, on the surface ...
spectrum(IR) and proton nuclear magnetic resonance(1H NMR).The film morphology of PFSEAS on cotton fiber surfaces was observed by field emitting scanning electronic microscopy(FESEM).The results showed that PFSEAS could form smooth and hydrophobic film on the fiber surface.The soil release grade ...
“Specific” groups indicate specific presence or duplication in only one species. “Homology” indicates partial homology detected with E < 10−5but no orthology grouped. Remaining orthologs were assigned to “Present at half of species” or “Patchy”, depending on whether presence is in ...
Fitted curve of FTIR spectrum ranging from 3000 to 3600 cm−1. (a) RC, (b) Sad-8 h, (c) Sad-24 h, (d) Sad-48 h. Full size image Figure 8 Content distribution of the various functional groups of the 3000–3600 cm−1band and total area of the –OH. (a) Percentages of ...
After carboxymethylation, the carboxyl group (-COOH) was grafted on the molecular of BC. The FT-IR spectrum of carboxymethyl bacterial cellulose (CBC) is different from the BC's (Fig. S2). These peaks including 1560 cm−1, 1410 cm−1 came from the antisymmetric and symmetric stretching...
Hydroxyl and epoxy-hydroxyl groups were found to be dominant in itnhcelurGdeOe1laenctdrorsGtaOti2csaatmtrpalcetsi,ornesbpeetcwteiveenlyth(seeoexaybgoevne)a.toTmheipnroinnceiplaayleirntaenrdactthioencamrbeochnaantiosmmsoifnththeeCr–GOOm1 soaimetpieles in an adjacent layer17, and hydroxyl-...
into two; the reaction of the living polyanion 'with a suitable linking agent having several reactive groups, and the initiation· of the living anionic polymerization by using a multifunctional initiator which can grow sev- eral arms having the same length on each active part of the initiator....