聚合物链 meaning in English
polymer chain
Examples
- Clearly the principle requirement for a substance to be capable of forming a structural unit of a polymer chain is that it must be difunctional .
显然，对于能成为聚合物链结构单元的物质的基本要求是：它必须是双官能的。 - It can also be manufactured from the large polymer chains found in cereals , grasses and trees
此外，它还可以从在谷、草与树中发现的聚合物链中制造出来。 - The length of the polymer chain is specified by the number of repeat units in the chain . this is called the degree of polymerization
聚合物链的长度可以用链中重复单元数来表示，叫做聚合度。 - Trackless co - polypylence _ polypylene and ethylene are co - single one , ethylene molecule is handy spread over in co - polypylene chain , high - strength material , whose using life in hot fire with 50 years
无规共聚体? ?聚丙烯和乙烯是共聚单体，乙烯分子在聚丙烯聚合物链中随机分布，高强度的材料，在热水中的使用寿命：使用期为50年。 - The urea - formaldehyde ( uf ) polymer / sio2 composite microspheres were prepared by polymerization - induced colloid aggregation ( pica ) method . the formation mechanism of composite microspheres is attributed to the fact that that urea and formaldehyde firstly undergo acid - catalyzed polymerization to form oligomers , and then the sol particles are adsorbed on the chain of oligomers by wan der walls force and hydrogen bonding . when the oligomers reach the critical chain length , they separate from solution due to phase separation
对复合微球形成机理的研究表明，尿素和甲醛在酸性条件下自身聚合可以形成高分子微球，在sio _ 2酸性溶胶中发生聚和反应时，随着反应的进行，齐聚物不断生成， sio _ 2胶体颗粒逐渐吸附在齐聚物分子链上，当聚合物链达到沉淀临界链长时，由于相分离作用，从前驱物溶液中析出，同时sio _ 2胶体颗粒均匀的分布在脲醛聚合物网络中，随之沉淀出来，形成脲醛sio _ 2复合微球。