An alternative deductive method for molecular weight distribution function of linear polymers

被引：0

作者：

Zhang, XH ^{[1
]}

Wang, J

机构：

[1] SW Jiaotong Univ, Dept Appl Phys, Chengdu 610031, Peoples R China

[2] Chengdu Municipal Sci & Technol Bur, Chengdu 610012, Peoples R China

来源：

ACTA POLYMERICA SINICA | 2005年 / 05期

关键词：

linear polymer; free radical polymerization; molecular weight distribution function; Flory-Schulz distribution;

D O I：

暂无

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The Flory-Schulz distribution or the most probable distribution was deduced in literature, for the molecular weight distribution functions of linear polymers synthesized by condensation and addition reactions in some simple cases. An alternative theoretical way for deducing these equations is given according to the most probable state by using the basic principle in statistical physics for two model systems of typical linear polymers, the forming of which obeys the mechanism of free radical termination by combination and disproportionation. Then the Flory-Schulz distribution is obtained quite naturally. This theoretical method is simple and easy without any additional supposition. It is hoped that this study could be helpful in understanding the physical foundation of the Flory-Schulz distribution.

引用

页码：725 / 730

页数：6

共 10 条

[1]

CAO GP, 1993, J CHEM ENG CHINESE U, V7, P155

[2]

FENG XD, 1984, FOCUS POLYM CHEM PHY, P14

[3]

Flory P. J., 1953, PRINCIPLES POLYM CHE, P317

[4]

HUANG JH, 2000, J BEIJING I PETROCHE, V8, P71

[5]

PAN Z, 1980, POLYM CHEM, P72

[6]

RUDIN A, 1988, ELEMENT POLYM SCI EN, P54

[7] Calculation of molecular weight distribution in non-linear free radical copolymerization [J].

Verros, GD .

POLYMER, 2003, 44 (22) :7021-7032

[8]

WANG ZX, 1965, INTRO STAT PHYS, P37

[9]

WU DC, 1985, POLYM COMMUN, P1

[10]

ZHANG YH, 1993, CHINESE J HEMATOL, V14, P127

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