Novel copolymers of styrene. 5. Alkyl and alkoxy ring-disubstituted propyl 2-cyano-3-phenyl-2-propenoates

Synthesis and styrene copolymerization of novel ring-substituted isobutyl phenylcyanoacrylates

“…The conversion of the copolymers was kept between 10 and 20% to minimize compositional drift (Table 1). Nitrogen elemental analysis showed that between 18.3 and 36.5 mol% of IPCA is present in the copolymers, which is indicative of relatively high reactivity of the IPCA monomers towards ST radical which is typical of ring-substituted esters PCA [18][19][20][21][22][23][24]. Since IPCA monomers do not homopolymerize, the most likely structure of the copolymers would be isolated alternating IPCA monomer (y = 1) units with short ST sequences (x > 1)…”

“…Thus, copolymerization of electrophylic TSE monomers having double bonds substituted with halo, cyano, and carbonyl groups and electron-rich monosubstituted ethylenes such as styrene, N-vinylcarbazole, and vinyl acetate [15][16][17] show a tendency toward the formation of alternating copolymers -thus suggesting a way of functionalization of commercial polymers via introduction of isolated monomer units in copolymers. Earlier we have reported synthesis and styrene copolymerization of a number of ring-substituted methyl [18][19][20][21], ethyl [22,23], propyl [24,25], isopropyl [26][27][28][29][30], butyl [31][32][33][34], and isobutyl [35,36] PCAs.…”

Synthesis and styrene copolymerization of dimethyl, dimethoxy, and halogen ring-substituted isopropyl cyanophenylacrylates

“…4-Fluoro ICPA was reported in catalysis studies compartmentalization of incompatible polymers within metal-organic frameworks [23]. We have reported synthesis and styrene copolymerization of a number of dimethyl and dimethoxy ring-substituted esters of cyanophenylacrylates (CPA): methyl CPA [24,25], ethyl CPA [26,27], propyl CPA [28], and butyl CPA [29], as well as mono halogen phenyl-substituted CPA: methyl CPA [30], ethyl CPA [31], propyl CPA [32], butyl CPA [33], and isobutyl [34].…”