Modification of PEN and PET film surfaces by plasma treatment and layer-by-layer assembly of polyelectrolyte multilayer thin films

作者：Toshiyuki Tamai amp; Mitsuru Watanabe amp; Koji Mitamura

通过等离子体处理和聚电解质多层薄膜的逐层组装对PEN和PET膜表面进行改性

Abstract The surfaces of polyethylene naphthalate and poly-ethylene terephthalate films were modified by plasma treat-ment, layer-by-layer (LbL) assembly of polyelectrolyte multi-layer thin films and subsequent deposition of SiO₂ particles. Plasma treatment rendered the film surfaces hydrophilic and led to the formation of fibrillar patterns. The plasma-treated film surfaces were compatible with multilayers acquired via LbL assembly, and the outer adsorbed polyelectrolyte layer determined the charge of the multilayer surfaces. Negatively charged SiO₂ particles were adsorbed to the positively charged surface of the multilayers. This process is potentially applicable to surface modifications of polymer materials by charged compounds.

Keywords Polymer surface modification ^. Plasma treatment ^. Layer-by-layer assembly ^. Polyelectrolyte multilayer thin film ^. Polyethylene naphthalate ^. Polyethylene terephthalate

摘要

聚萘二甲酸乙二醇酯和聚对苯二甲酸乙二醇酯薄膜的表面通过等离子体处理，聚电解质多层薄膜的逐层（LbL）组装和随后的SiO₂颗粒的沉积而被改性。等离子体处理使得薄膜表面具有亲水性导致形成纤维状图案。等离子体处理的薄膜表面与通过获得的多层兼容LbL组装，以及外部吸附的聚电解质层确定了多层表面的电荷。负带正电的SiO₂颗粒被吸附带电表面的多层膜。这一过程可能适用于聚合物材料表面改性的带电化合物。

关键词：聚合物表面改性；等离子处理；逐层组装；聚电解质多层薄膜；聚萘二甲酸乙二醇酯;聚对苯二甲酸乙二醇酯

Introduction