Synthesis of Photocleavable Poly(styrene-block-ethylene oxide) and Its Self-Assembly into Nanoporous Thin Films was written by Kang, Minhyuck;Moon, Bongjin. And the article was included in Macromolecules (Washington, DC, United States) in 2009.Recommanded Product: 60463-12-9 This article mentions the following:
A selectively photocleavable PS-b-PEO block copolymer (ONB-(PS-b-PEO)) was synthesized by ATRP with a good control of mol. weight and polydispersity. The key in the design of this unique block copolymer was to incorporate a photocleavable linking unit, ONB, in the middle of the block copolymer. The facile photocleavage of ONB-(PS-b-PEO) was carried out by simple irradiation with long-wavelength UV light (350 nm) for several hours with low-power UV lamps (8 × 8 W, 5.3 mW/cm2) in both solution and thin films. Fabrication of nanoporous PS films was easily achieved using this block copolymer. We are aiming to exploit the utility of this polymer by taking advantage of the functionality inside the nanopores because COOH groups should be generated by ONB group cleavage. In the experiment, the researchers used many compounds, for example, 3-(Hydroxymethyl)-4-nitrophenol (cas: 60463-12-9Recommanded Product: 60463-12-9).
3-(Hydroxymethyl)-4-nitrophenol (cas: 60463-12-9) belongs to alcohols. Alkyl halides are often synthesized from alcohols, in effect substituting a halogen atom for the hydroxyl group. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.Recommanded Product: 60463-12-9
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts