A mechanochromic donor-acceptor torsional spring was written by Raisch, Maximilian;Maftuhin, Wafa;Walter, Michael;Sommer, Michael. And the article was included in Nature Communications in 2021.Safety of N-Methyl-N,N-dioctyloctan-1-aminium chloride The following contents are mentioned in the article:
Mechanochromic polymers are intriguing materials that allow to sense force of specimens under load. Most mechanochromic systems rely on covalent bond scission and hence are two-state systems with optically distinct ”on” and ”off” states where correlating force with wavelength is usually not possible. Translating force of different magnitude with gradually different wavelength of absorption or emission would open up new possibilities to map and understand force distributions in polymeric materials. Here, we present a mechanochromic donor-acceptor (DA) torsional spring that undergoes force-induced planarization during uniaxial elongation leading to red-shifted absorption and emission spectra. The DA spring is based on ortho-substituted diketopyrrolopyrrole (o-DPP). Covalent incorporation of o-DPP into a rigid yet ductile polyphenylene matrix allows to transduce sufficiently large stress to the DA spring. The mech. induced deflection from equilibrium geometry of the DA spring is theor. predicted, in agreement with experiments, and is fully reversible upon stress release. This study involved multiple reactions and reactants, such as N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3Safety of N-Methyl-N,N-dioctyloctan-1-aminium chloride).
N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Alkyl chlorides are versatile building blocks in organic chemistry. While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available.Safety of N-Methyl-N,N-dioctyloctan-1-aminium chloride
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics