title: Analysis of Nanodomain Composition in High-Impact Polypropylene by Atomic Force Microscopy-Infrared.
abstract: In this paper, compositions of nanodomains in a commercial high-impact polypropylene (HIPP) were investigated by an atomic force microscopy-infrared (AFM-IR) technique. An AFM-IR quantitative analysis method was established for the first time, which was then employed to analyze the polyethylene content in the nanoscopic domains of the rubber particles dispersed in the polypropylene matrix. It was found that the polyethylene content in the matrix was close to zero and was high in the rubbery intermediate layers, both as expected. However, the major component of the rigid cores of the rubber particles was found to be polypropylene rather than polyethylene, contrary to what was previously believed. The finding provides new insight into the complicated structure of HIPPs, and the AFM-IR quantitative method reported here offers a useful tool for assessing compositions of nanoscopic domains in complex polymeric systems.
authors.affiliation: State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin 130022, P. R. China.|University of Chinese Academy of Sciences , Chinese Academy of Sciences, Beijing, 100039, P. R. China.
authors.forename: Fuguang
authors.initials: F
authors.lastname: Tang
authors.affiliation: ExxonMobil Asia Pacific R&D., Ltd. , 1099 Zixing Road, Shanghai, 200241, P. R. China.
authors.forename: Peite
authors.initials: P
authors.lastname: Bao
authors.affiliation: State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun, Jilin 130022, P. R. China.
authors.forename: Zhaohui
authors.initials: Z
authors.lastname: Su