On June 28, 2011, Biedermann, Frank; Appel, Eric A.; del Barrio, Jesus; Gruendling, Till; Barner-Kowollik, Christopher; Scherman, Oren A. published an article.Product Details of 92-36-4 The title of the article was Postpolymerization Modification of Hydroxyl-Functionalized Polymers with Isocyanates. And the article contained the following:
The postpolymn. functionalization of hydroxyl-group terminated polymers (Mn in the range of 1000-6000 g mol-1) such as poly(ethylene glycol) (PEG), poly(N-isopropylacrylamide) (PNIPAM), poly(N,N-dimethylacrylamide) (PDMAM), and poly(tert-Bu acrylate) (PtBA) with a wide range of functional isocyanate derivatives such as azobenzene, viologen, and anthracene was studied. It was shown by 1H and 13C NMR, GPC, Fourier transform IR spectroscopy (FTIR), and electrospray ionization mass spectrometry (ESI-MS) that a high degree of end-group conversion, typically >98%, with little or no formation of side products can be achieved at ambient temperature PNIPAM, PDMAM, PtBA, and PHEAM polymers were obtained by reversible addition-fragmentation chain transfer (RAFT) radical polymerization from a hydroxyl-group containing chain transfer agent (CTA). The formation of the carbamate was compatible with the trithiocarbonate end-group of the RAFT polymers. Addnl., this approach allows for the direct functionalization of RAFT polymers without the need of addnl. steps such as deprotection or aminolysis of the CTA. This route was subsequently used for the preparation of a variety of side-chain functional polymers from poly(N-hydroxyethyl acrylamide) (PHEAM). Three different high yielding methods were employed to prepare the isocyanates (R-NCO). Either amino or carboxylic acid precursors were converted into the desired R-NCO or hydroxyl group moieties were reacted with an excess of 1,6-hexamethylene diisocyanate (HDI) to statistically form the monofunctional product. The experimental process involved the reaction of 2-(4-Aminophenyl)-6-methylbenzothiazole(cas: 92-36-4).Product Details of 92-36-4
The Article related to postpolymn modification hydroxyl functionalized polymer isocyanate carbamate, Chemistry of Synthetic High Polymers: Chemical Transformation Of Polymers and other aspects.Product Details of 92-36-4
Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica