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On the chain cross‐sectional area and motion of macromolecular chains
Author(s) -
He TianBai
Publication year - 1985
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1985.070301110
Subject(s) - glass transition , intermolecular force , chain (unit) , polymer , flexibility (engineering) , materials science , macromolecule , chemical physics , cross link , polymer science , chemistry , molecule , composite material , physics , organic chemistry , mathematics , statistics , biochemistry , astronomy
This paper attempts to relate the chain cross‐sectional area to the glass transition temperature of a polymer and to discuss the effect of the chain cross‐sectional area in view of the motion of molecular chains. It has been found that the definite relationship between glass transition temperature and cross‐sectionalarea can be obtained only when taking account of intermolecular interaction of polymer chains. It is considered that the chain cross‐sectional area will characterize the chain flexibility of a polymer since the glass transition temperature is related both to intermolecular interaction and chain flexibility of a polymer. The concept of the structural parameter cross‐sectional area per chain, first introduced by Vincent 1 and used by Boyer and Miller, 2–5 is useful in empirically correlating properties and structures of polymers. The glass transition temperature is a basic parameter of bulk polymers and is characteristic of their intermolecular interactions and chain flexibility. This paper attempts to relate chain cross‐sectional areas to glass transition temperatures of polymers and to discuss the effect of the chain cross‐sectional area in view of the motion of molecular chains.