SURFACE MODIFICATION OF BPDA-PDA POLYIMIDE

被引:67
作者
LEE, KW
KOWALCZYK, SP
SHAW, JM
机构
[1] IBM Research, Thomas J. Watson Research Center, Yorktown Heights
关键词
D O I
10.1021/la00059a009
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Poly(biphenyl dianhydride-p-phenylenediamine) (BPDA-PDA) polyimide film surfaces are initially modified with KOH aqueous solution to yield a potassium polyamate surface. The reaction of the polyamate surface with acid gives a polyamic acid surface. The starting polyimide surface is reproduced upon curing the modified surface. Modified surfaces are identified with X-ray photoelectron spectroscopy, external reflectance infrared (ER IR) spectroscopy, and contact angle measurement. The average depth of modification, which is measured by a method using an absorbance-thickness relationship established with ellipsometry and ER IR, is controlled by the reaction temperature and time. Surface topography and film thickness can be maintained while a strong polyimide-polyimide adhesion is achieved. A relationship between surface structure and adhesion is established.
引用
收藏
页码:2450 / 2453
页数:4
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