INTRAMOLECULAR EXCIMER FORMATION IN POLYESTERS FROM TEREPHTHALIC ACID AND 6 2R,2R'-PROPANEDIOLS

被引：0
|
作者：
MENDICUTI, F
MATTICE, WL
机构：
[1] UNIV AKRON, INST POLYMER SCI, AKRON, OH 44325 USA
[2] UNIV ALCALA DE HENARES, DEPT QUIM FIS, E-28871 MADRID, SPAIN
来源：
MAKROMOLEKULARE CHEMIE-MACROMOLECULAR CHEMISTRY AND PHYSICS | 1993年 / 194卷 / 10期
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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：
Fluorescence has been measured for six polyesters derived from terephthalate and six 2R,2R'-propanediols, represented by HOCH2-CRR'-CH2OH. The solvent effects on the emission spectra permit separation of the six polymers into two groups. One group consists of the five polyesters in which R and R' are alkyl groups, and the other group has only one member, that being the polyester with R = R' = H. Modelling suggests that the origin of the difference between the two groups lies in the access by the polyester with R = R' = H to a conformation (inaccessible when R and R' are alkyl groups) that forms a very tight complex between two successive aromatic rings.
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页码：2851 / 2860
页数：10
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