Chemistry, like all the natural sciences, begins with the direct observation of nature— in this case, of matter.33252-30-1, Name is 2-Chloroisonicotinonitrile, SMILES is C1=C(C=CN=C1Cl)C#N, belongs to pyridine-derivatives compound. In a document, author is Hsu, Chia-Juei, introduce the new discover, Quality Control of 2-Chloroisonicotinonitrile.
Synthesis of poly(styrene)-b-poly(2-vinyl pyridine) four-arm star block copolymers via ATRP and their self-assembly behaviors
In this study, synthesis of poly (styrene)-b-poly (2-vinyl pyridine) four-arm star block copolymers ((PS-b-P2VP)(4) sBCPs) possessing high interaction parameter (chi) feature was investigated. To obtain well-defined sBCPs, a challenge on ATRP of pyridine-containing monomers is foreseeable. We thus scrutinized the domino effect from PS macminitiators (MIs) having different halogen chain ends (i.e., (PS-X)(4), where X = Br/Cl) to the subsequent chain extensions. As evident from the model reactions of benzyl halides (BzX, where X = Br/Cl) and 2-methylpyridine (2 MP), the combination of BzCl and 2 MP can significantly suppress the substitution side reaction. Consequently, well-defined (PS-b-P2VP)(4) sBCPs were obtained (M-n = ca. 58 k-82 k with PDI <1.5). From the analyses of small angle X-Ray scattering (SAXS), transmission electron microscopy (TEM), and atomic force microscope (AFM), self-assembly behaviors of the obtaining sBCPs were facilely observed due to the high chi feature, mainly including cylinder and lamellae morphologies, in nanoscale of approximately 30 nm. The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 33252-30-1 is helpful to your research. Quality Control of 2-Chloroisonicotinonitrile.
Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem