On the polymerization of 2-(2′,4′-dichlorophenyl)-4-methylene-1,3-dioxolane
✍ Scribed by Simona Morariu; Bogdan C. Simionescu
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 198 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0014-3057
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✦ Synopsis
Abstraet--2-(2',4'-Dichlorophenyl)-4-methylene-l,3-dioxolane was synthesized and polymerized by radical (AIBN and photochemically) and cationic (I 2, BF 3 . OEt2) routes. A polymerization mechanism is proposed based on the analysis of the resulting polymers.
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## Abstract 2‐Isopropenyl‐4‐methylene‐1,3‐dioxolane (1) undergoes cationic polymerization in donative solvents without crosslinking to afford poly(ether‐ketone) 2 having two unitstructures. When solvents having medium donor number (DN = 14,1–17,1), such as acetonitrile, dioxane, ethyl acetate, and
The reaction of 2-methylene-l,3-dioxolanes and 2-methylene-1,3-oxazolidines with benzoyl peroxide (acceptor radical) and with N-ethylmaleimide (acceptor) was investigated. It was shown that benzoyl peroxide adds to monomers la and lb, giving the corresponding linear diester amides la and lb respecti
Photoinitiated polymerization of 4-methylene-2-phenyl-1,3-dioxolane ( 1) was carried out using either tris(4-methylphenyl)sulfonium hexafluoroantimonate or 4-decyloxyphenyl phenyliodonium hexafluoroantimonate as initiators. 1 H-NMR analyses confirmed exclusive ring-opening while DSC and SEC were use