Statistical theory for hydrogen bonding fluid system of A_aD_d type(II):Properties of hydrogen bonding networks  

作　　者：WANG HaiJun HONG XiaoZhong GU Fang BA XinWu 

机构地区：[1]College of Chemistry and Environment Science,Hebei University,Baoding 071002,China [2]International Center for Materials Physics,Chinese Academy of Sciences,Shenyang 110016,China [3]College of Physics Science and Technology,Hebei University,Baoding 071002,China

出　　处：《Science China Chemistry》2007年第1期11-17,共7页中国科学（化学英文版）

基　　金：the National Natural Science Foundation of China(Grant Nos.20303006 and 20574016);the Natural Science Foundation of Hebei Province(GrantNos.B2006000959 and B2004000093);the Natural Science Foundation of Edu-cation Committee of Hebei Province(Grant No.2003101)

摘　　要：Making use of the invariant property of the equilibrium size distribution of the hydrogen bonding clus- ters formed in hydrogen bonding system of AaDd type,the analytical expressions of the free energy in pregel and postgel regimes are obtained.Then the gel free energy and the scaling behavior of the number of hydrogen bonds in gel phase near the critical point are investigated to give the corre- sponding scaling exponents and scaling law.Meanwhile,some properties of intermolecular and in- tramolecular hydrogen bonds in the system,sol and gel phases are discussed.As a result,the explicit relationship between the number of intramolecular hydrogen bonds and hydrogen bonding degree is obtained.Making use of the invariant property of the equilibrium size distribution of the hydrogen bonding clusters formed in hydrogen bonding system of AaDd type, the analytical expressions of the free energy in pregel and postgel regimes are obtained. Then the gel free energy and the scaling behavior of the number of hydrogen bonds in gel phase near the critical point are investigated to give the corresponding scaling exponents and scaling law. Meanwhile, some properties of intermolecular and intramolecular hydrogen bonds in the system, sol and gel phases are discussed. As a result, the explicit relationship between the number of intramolecular hydrogen bonds and hydrogen bonding degree is obtained.

关 键 词：hydrogen BONDING network GEL phase SCALING LAW 

分 类 号：O641.1[理学—物理化学]