Ancillary
发表于 2025-4-1 04:29:31
http://reply.papertrans.cn/83/8219/821841/821841_61.png
Ataxia
发表于 2025-4-1 09:17:10
The Catalysis of the Polycyclotrimerization of Isocyanates by Quaternary Ammonium Carboxylates key factors which determine the composition of the final products. They observed that the formation of linear polymers proceeded only at low temperatures (< -20°C) and the formation of the cyclic trimers proceeded at ambient or higher temperatures .
贿赂
发表于 2025-4-1 13:47:59
http://reply.papertrans.cn/83/8219/821841/821841_63.png
enumaerate
发表于 2025-4-1 16:01:51
Potential of Crown Ether-Assisted Anionic Polymerization of Styrene and Dienes for Commercial Procesg the greatest attention.. Macrocyclic oligomers of ethylene oxide, termed crown ethers, have warranted extensive investigation due to their extremely high binding constants for typical cations such as Na., K. and Li. compared to linear analogs.