摘要
通过ＭｏｎｔｅＣａｒｌｏ方法研究了多嵌段高分子链在稀溶液中的形态，考察了该分子链线团的形状随两种不同化学组分相互作用的变化，以及嵌段长度的变化情况。结果表明，多嵌段高分子链线团的体积随两组分相互作用能的增加而膨胀，主要在长轴方向上使线团形状变长。嵌段长度的增加使该线团稍有收缩。多嵌段分子链当两组分相互作用好时更接近球形，而不好时更偏离球形。
The chain shape of multiple block co-polymer in dilute solution has been studied by using Monte Carlo method. Changes of the chain shape with variation of the interaction of two components along the chain and with variation of block length of the chains were examined. It shows that volume of the coil of the multiple block co-polymer chain increases with the interaction energy of the two components, especially in the direction of the long axis, so that the coil is stretched. When the length of the block increases, the coil is a little shrunk. The chain shape is more close to the shape of a sphere while the interaction of the two components is suitable for each other, and more deviated from the sphere when the interaction appears worse.
出处
《计算机与应用化学》
CAS
CSCD
1998年第3期120-133,共14页
Computers and Applied Chemistry
基金
国家自然科学基金
国家"攀登"计划资助项目
关键词
多嵌段高分子
链结构
链形态
高分子链
Mote Carlo,Shape of polymer chain,Multiple block co-polymer, Asphericity factor
