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Citation: Luo Meng-Bo, Chen Ying-Cai, Huang Jian-Hua, Xu Jian-Min. Monte Carlo Study on Polymer Chain with One End Attached to a Surface[J]. Acta Physico-Chimica Sinica, ;2001, 17(05): 422-426. doi: 10.3866/PKU.WHXB20010509 shu

Monte Carlo Study on Polymer Chain with One End Attached to a Surface

1.
Department of Physics,Zhejiang University,Hangzhou　310028;Department of Physics,Taizhou Teacher's College,Taizhou　317000;Department of Chemistry,Zhejiang University,Hangzhou　310028

Received Date: 20 October 2000
Available Online: 15 May 2001

The endtoend vector distribution P(R) of a linear randomflight polymer chain with one end attached to an infinite large flat surface is investigated by Monte Carlo method.The meansquare endtoend distance can be given by =(4/3)n,and the mean angle by <θ>=45 ,where n is the chain length, θ is the angle between the endtoend vector R and Z axis normal to the surface.The radial distribution is P(R)dR=2A4 exp (－A2R2)R3 dR and the angular distribution isP(θ)dθ =sin 2θdθ ,here A2=3/(2n).The shape factor :: is about 1:2.73:12.5.The distribution of angle ,the angle between the longest principal axis L3 and Z axis,is approximately P(α)dα =sinαdα ,and its mean value <α> is nearly equal to 55.5 .
- End-to-end vector;Shape factor;Distribution function;Polymer Chain excluded volume;real polymer chain;
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