Citation:
CHIANG TEH-CHANG, PAO HSING-LIN, SUN KUo-SHANG, VOONG SING-TUH. SYNTHESIS AND CYCLOPOLYMERIZATION OF 2-ACRYLOXYACRYLIC ESTERS[J]. Acta Polymerica Sinica,
;1965, 7(1): 56-64.
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Methyl and ethyl 2-acryloxyacrylate (Va,Vb)and ethyl 2-methacryloxyacrylate(Vc) have been synthesized and polymerized to linear cyclopolymers.The monomers were synthesized through:(1) acylation of 2-hydroxy-3-chloropropionic esters with 3-chloro-propionyl chloride or 2-methyl-3-chloropropionyl chloride to obtain correspondingly methyl and ethyl 2-(3’-chloropropioxy)-3-chloropropionate(IVa,IVb)and ethyl 2-(2’-methyl-3’-chloropropioxy)-3-chloropropionate(IVc),and (2) dehydrochlorination of the acylated compounds (IV) with triethylamine to obtain the desired monomers (V).By considering the solubilities,chemical analysis of the double bonds,and infrared spectra of the poly-mers,we proposed that these monomers (V) were polymerized chiefly according to the cyclopolvmerization mechanism.
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