NEW METHODS FOR THE DETERMINATION OF DOPANT SITE DISTRIBUTIONS AND DOPANT RATES OF DIFFUSION IN LOW-DENSITY POLYETHYLENE FILMS WITH COVALENTLY ATTACHED ANTHRYL GROUPS - FLUORESCENCE QUENCHING BY N,N-DIMETHYLANILINE IN UNSTRETCHED, STRETCHED, AND SWELLED FILMS

被引：39

作者：

HE, ZQ ^{[1
]}

HAMMOND, GS ^{[1
]}

WEISS, RG ^{[1
]}

机构：

[1] GEORGETOWN UNIV,DEPT CHEM,WASHINGTON,DC 20057

来源：

MACROMOLECULES | 1992年 / 25卷 / 05期

关键词：

D O I：

10.1021/ma00031a032

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Thermal decomposition of 9-anthryldiazomethane, doped into low-density polyethylene (LDPE) films, provides covalent attachment of anthryl groups at internal dopant sites. Fluorescence from the new material, An-LDPE, has been employed to measure the diffusion coefficients of N,N-dimethylaniline (DMA), its diffusion activation energy, and the relative distribution of dopant site sizes in unstretched, stretched, and swelled films. The results are compared with those from LDPE films containing covalently attached pyrenyl groups.

引用

页码：1568 / 1575

页数：8

共 49 条

[1] FERMI RESONANCES AND VIBRATIONAL-SPECTRA OF CRYSTALLINE AND AMORPHOUS POLYMETHYLENE CHAINS [J].