Preparation of Highly Loaded PAA/PAH Layer-by-layer Films by Combining Acid Transformation and Templating Methods

• 来源期刊: 高等学校化学研究（英文版）
• 年，卷（期）: 2019,（2）
• 页码范围: 353-358
• 页数: 6页
• 语种: 英文
• DOI: 10.1007/s40242-019-8203-9

摘要

Enhancing the molecular loading capability of layer-by-layer(LbL) method holds high importance in environmental and biomedical application.Here,we reported a strategy to prepare highly loaded poly(acrylic acid)(PAA)/poly(allylamine hydrochloride)(PAH) LbL films by combining the particulate templating strategy and acid treatment film transformation and realized the efficient loading of hydrophilic small molecules.The loaded molecules can be released in a pH-controlled manner.A slow release speed was observed in the acidic solutions with pH value of 3.Abrupt releases were observed at higher pH values(5 or 7).