The corn starch was modified by reaction with isooctyl acrylate(IA) using BPO as initiator. It is found by XRD and IR that the graft copolymerization takes place at the amorphous region of starch. The effects of react...The corn starch was modified by reaction with isooctyl acrylate(IA) using BPO as initiator. It is found by XRD and IR that the graft copolymerization takes place at the amorphous region of starch. The effects of reaction temperature on the monomer conversion, grafting ratio and grafting efficiency were investigated.展开更多
2-Ethylhexyl p methoxycinnamate was synthesized with phase transfer catalyst polyethylene glycol (PEG). The result showed that the catalytic effect of PEG400 was the best and the yield reached 75.2% .The b.p,Ms ,IR an...2-Ethylhexyl p methoxycinnamate was synthesized with phase transfer catalyst polyethylene glycol (PEG). The result showed that the catalytic effect of PEG400 was the best and the yield reached 75.2% .The b.p,Ms ,IR and HNMR spectral data indicated that the synthetic product was 2 ethylhexyl p methoxycinnamate.展开更多
文摘The corn starch was modified by reaction with isooctyl acrylate(IA) using BPO as initiator. It is found by XRD and IR that the graft copolymerization takes place at the amorphous region of starch. The effects of reaction temperature on the monomer conversion, grafting ratio and grafting efficiency were investigated.
文摘2-Ethylhexyl p methoxycinnamate was synthesized with phase transfer catalyst polyethylene glycol (PEG). The result showed that the catalytic effect of PEG400 was the best and the yield reached 75.2% .The b.p,Ms ,IR and HNMR spectral data indicated that the synthetic product was 2 ethylhexyl p methoxycinnamate.