The z-Average of Cross-Linked Polymers

被引：1
作者：
Bachmann, Rolf [1 ]
机构：
[1] Dellbrucker Str 246, D-51469 Bergisch Gladbach, Germany
来源：
MACROMOLECULAR THEORY AND SIMULATIONS | 2024年 / 33卷 / 03期
关键词：
branching; cross-linking; molecular weight distribution; z-average molecular weight; MULTIPLE INTERUNIT JUNCTIONS; STEP GROWTH POLYMERIZATIONS; MOLECULAR-SIZE DISTRIBUTION; GEL FORMATION; CONTINUOUS-FLOW; CASCADES;
D O I：
10.1002/mats.202300065
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Stockmayer's formula for the weight average of cross -linked primary chains is extended to the z -average degree of polymerization DPz. This average is a function of the weight- and z -average degree of polymerization lambda(w) and lambda(z) of the primary chain distribution and the branching density a: DPz= lambda(z)(1+a)(3)-lambda(2) (w)a(2)(3+a)/(1-a(lambda(w)-1))(2)(1+a). Higher averages of branched polymers from monomers of type A(f) and BA(f-1 )with functionalities f >= 2 are discussed.
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页数：8
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