Microcapsules were prepared through two-step and one-step in situ polymerization method, with urea-formaldehyde as wall material, and tetrachloroethylene as core material.
以尿素-甲醛为壁材，四氯乙烯为芯材，通过两步原位聚合法和一步原位聚合法制备微胶囊。
2
Synthetic methods and their research progress of aromatic cyclic oligomers, including one-steppolymerization, multi-step polymerization and cyclo-depolymerization are rev…
本文按一步合成法、多步合成法和解聚成环法三种不同路线综述了芳香环状低聚体的制备及其研究现状。
3
The title curing agent has been prepared by one - step catalytic polymerization process with a specific chemical additive.