%0 Journal Article
%T THE MONTE CARLO SIMULATION OF THE COLLAPSE TRANSITION OF A SEMI-STIFF POLYMER CHAIN<br>半刚性高分子链塌缩相变的蒙特卡洛模拟
%A XIE Yuan-nan
%A HUANG Yun
%A <br>谢元南
%A 黄昀
%J 高分子学报
%D 1993
%I 
%X The configurations and the collapsed polymer state of a semi-stiff chain under various temperatures, especially below the theta point ,are presented in this paper. The Monte Carlo method is used to simulation the behavior of a semi-stiff polymer chain in simple cubic lattice. In our model the inter-segmental interactions included the hard core volume effect, longer ranged attractive part and the local stiffness potential. The stiffness of a chain is determined by the ratio of stiffness potential and attractive effect. Our results have been obtained showing a shrinkage of the coil dimension of a polymer chain with decrease temperature. But there has some differences between a flexible chain and a semi-stiff polymer chain. At first the soil demintion of a semi-stiff chain is expanded due stiffness potential, then it shrinkage with decrease temperature. From the behaviou of the specific heat we concluded that the collapsed transitions of a polymer chain is a second-order phase transitions.
%K Collapsed phase transitions
%K Monte Carlo Simulation
%K Local stiffness potential<br>塌缩相变
%K 蒙特卡洛模拟
%K 高聚物链
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=15971983683C7643EE80F1CE621DEB60&aid=24BF66E8A3828403&yid=D418FDC97F7C2EBA&iid=38B194292C032A66&sid=3224764AEAFCF8C2&eid=C6EC7357BCACD3A4&journal_id=1000-3304&journal_name=高分子学报&referenced_num=0&reference_num=0