高分子化合物分为普通高分子化合物和支化高分子化合物两大类,前者是我们很熟悉的线性高聚物,包括线性的均聚物和共聚物、交链的高聚物以及接枝的高聚物三种。支化高分子化合物是像树枝形状的大分子,具有球形状的三维构型。
支化聚合物的合成及表征 关键词：支化聚合物；合成；表征 [gap=10418]Key words：branched polymer；synthesis；characterization
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超支化聚合物的玻璃化转变温度随支化点间链段刚性的增大而增大。
The glass transition temperature of hyperbranched polymers rises with the increase of the rigidity of chain segments.
相较类似的线性聚合物而言，超支化聚合物在拓扑结构上与树枝状大分子更为相似，只是其支化度相对来说要低一些。
As compared to their linear analogous, hyperbranched polymers have drawn much attention due to their similar topology structures and properties comparing with dendrimers.
高分子链的支化，与另一种共聚物接枝，或共混支化聚合物和线性聚合物是增加其粘度的基本方法，以使其能够发泡。
Branching polymer chains, copolymerizing with another monomer, and blending branched or cross-linked polymers are the basic methods to increase its viscosity so that it can be suitable for foaming.
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