Saunders, K. G. published the artcilePoly(alkyl α-bromoacrylates). 2. Preparation and properties of the methyl, ethyl, n-propyl, isopropyl, n-butyl, and n-pentyl esters of varied tacticity, Computed Properties of 18791-02-1, the publication is Macromolecules (1982), 15(1), 1-10, database is CAplus.
Polymers of widely ranging tacticities, from highly isotactic to highly syndiotactic, were synthesized from Me [4519-46-4], Et [5459-35-8], Pr [13401-88-2], iso-Pr [79762-79-1], Bu [6420-76-4], and n-pentyl α-bromoacrylate [13401-89-3]. The isotactic polymers were synthesized with a modified Grignard complex consisting a Grignard reagent and benzalacetophenone [94-41-7]. A low-temperature, photolytically induced, free radical polymerization reaction was employed for the preparation of the syndiotactic polymers. Only atactic poly(tert-Bu α-bromoacrylate) [79794-49-3] could be synthesized because of the failure of the corresponding monomer to polymerize with the modified Grignard complex or at temperatures <20°. Polymer tacticity was determined by 19-Hz 13C NMR spectroscopy. Complete assignments for the ten pentad peaks of the carbonyl carbon resonance were achieved for all but the iso-Pr ester polymer while a complete anal. of the tetrad tacticity for the backbone methylene carbon resonance was possible for all but the Me ester polymer. The polymerization reaction mechanisms were discussed in terms of the propagation statistics which were calculated from the exptl. tetrads and pentads.
Macromolecules published new progress about 18791-02-1. 18791-02-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is 2,3-Dibromopropionylchloride, and the molecular formula is C3H3Br2ClO, Computed Properties of 18791-02-1.
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