Template-controlled oligomerization. The search for bimolecular termination
摘要:
Bimolecular termination was probed in benzene and in methyl isobutyrate using exogenous terminator and a previously described template system effective in controlling oligoselectivity in the free-radical-mediated polymerization of methyl methacrylate. As expected, increasing amounts of added terminator led to a decrease in intramolecular termination (cyclization). However, differences in reactivity profiles with different added terminators in the two solvents are consistent with the intervention of solvent-enforced control of chain-template dynamics.
Propene derivatives and their use as plant growth inhibitors
申请人:DAICEL CHEMICAL INDUSTRIES, LTD.
公开号:EP0117412A1
公开(公告)日:1984-09-05
A propene derivative represented by general formula:
wherein A and B are as defined hereinbefore. The propene derivative of the invention is useful as a plant growth inhibitor.