Nonionic Water-Soluble Polysilynes. Synthesis and Properties of a Novel Class of Functionalized Materials was written by Cleij, Thomas J.;Tsang, Stellar K. Y.;Jenneskens, Leonardus W.. And the article was included in Macromolecules in 1999.Name: 2-(2-(Hexyloxy)ethoxy)ethanol The following contents are mentioned in the article:
The nonionic water-soluble polysilynes poly(4,7,10-trioxaundecylsilyne) (I) and poly(4,7,10,13-tetraoxatetradecylsilyne) (II), which are inaccessible using the conventional Wurtz-type coupling with Na in refluxing toluene, were prepared in reasonable yields using graphite potassium C8K as the reducing agent in THF at 0 °C. A water-insoluble analog of I, viz. poly(4,7,10-trioxahexadecylsilyne) (III), is obtained in nearly quant. yield under similar conditions. Despite the fact that I and II possess all the characteristic polysilylene-like (photo)phys. properties, aqueous solutions of I and II unexpectedly exhibit thermoresponsive behavior; i.e., at 49 °C a lower critical solution temperature (LCST) is found. The presence of an LCST, which has to originate from folding/unfolding processes of the polysilylene backbone, suggests that polysilynes have a hybrid structure with a predominantly one-dimensional overall appearance consisting of linear fragments with small branches and/or incorporated (branched) cyclics, instead of the previously proposed extended sheetlike and/or hyperbranched/dendritic structures. Addnl. support for a hybrid structure was given by semiempirical PM3 calculations on a variety of oligomeric model compounds The PM3 results suggest that Si-Cl moieties incorporated in oligomers will be more reactive than monomeric Si-Cl groups. The calculations further indicate that linear chain extension is preferred over branching. Cyclic voltammetry in combination with absorption/excitation spectroscopy reveals that in going from the related polysilane to the polysilylene the valence band edge shifts ca. -0.7 V, while the conduction band edge remains virtually unchanged. Furthermore, it is demonstrated that polysilynes I and II are effective photoinitiators for radical polymerizations upon excitation at λ 400 nm. This is exemplified for the conversion of Me acrylate into poly(Me acrylate). This study involved multiple reactions and reactants, such as 2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4Name: 2-(2-(Hexyloxy)ethoxy)ethanol).
2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4) belongs to ethers. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Name: 2-(2-(Hexyloxy)ethoxy)ethanol
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem