Towards identifying the new structures formed on the γ-radiolysis of Ultem

被引：9

作者：

Brereton, I

Devasahayam, S

Hill, DJT ^{[1
]}

Whittaker, AK

机构：

[1] Univ Queensland, Dept Chem, Polymer Mat & Radiat Grp, Brisbane, Qld 4072, Australia

[2] Univ Queensland, Ctr Magnet Resonance, Brisbane, Qld 4072, Australia

来源：

RADIATION PHYSICS AND CHEMISTRY | 2004年 / 69卷 / 01期

关键词：

Ultem; gamma-radiolysis; NMR; partial structures;

D O I：

10.1016/S0969-806X(03)00350-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ultem irradiated up to 10.0 MGy has been analysed using C-13, H-1 and D-2 proton-carbon and proton-proton correlation NMR spectroscopy to shed light on the formation of new structures. Chemical shifts and correlation data were used to determine the structure or partial structures of several new components. The spectra indicated the presence of new groups and structures involving the isopropylidene group, the imide ring, and hydrogen-abstraction reactions. Possible pathways for formation of the new structures are proposed and the G-values for their formation have been estimated. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：65 / 77

页数：13

共 18 条

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