polyfunctional structure的用法和樣例：
例句
- A polyfunctional monomer is one with three or more functional groups per molecule.
多官能度單體是指每個(gè)分子含有三個(gè)或三個(gè)以上官能團的單體。 - In the second part, heteroarm star-shaped polymers were synthesized by conventional free radical polymerization in two steps by the use of polyfunctional chain transfer agent.
在第二部分中，采用多官能鏈轉移劑通過(guò)普通自由基聚合制備了雜臂星形聚合物。
