STRUCTURE AT POLYMER INTERFACES DETERMINED BY HIGH-RESOLUTION NUCLEAR-REACTION ANALYSIS

被引：97

作者：

CHATURVEDI, UK ^{[1
]}

STEINER, U ^{[1
]}

ZAK, O ^{[1
]}

KRAUSCH, G ^{[1
]}

SCHATZ, G ^{[1
]}

KLEIN, J ^{[1
]}

机构：

[1] WEIZMANN INST SCI,DEPT POLYMER RES,IL-76100 REHOVOT,ISRAEL

来源：

APPLIED PHYSICS LETTERS | 1990年 / 56卷 / 13期

关键词：

D O I：

10.1063/1.103332

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We describe a method based on nuclear reaction analysis, using the reaction 2H(3He, 4He)1H, (Q=18.352 MeV) to determine composition profiles of deuterated polymer chains in thin films. By detecting the emitted α particles (4He) at forward angles (30°) we are able to achieve a spatial resolution of 7 nm half width at half maximum (HWHM) at the deuterated sample surface, and 15 nm HWHM at a depth of some 130 nm. We use our method to probe initial diffusional broadening at the interface between deuterated and protonated polystyrene films. Our measured profiles are in close agreement with earlier measurements (over larger spatial scales) and with mean field models for the diffusional process in this system.

引用

页码：1228 / 1230

页数：3

共 24 条

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