Electronic Supporting Information

In-Situ Spectroscopic and Thermal Analyses of Phase Domains in

High-Impact Polypropylene

Fuguang Tang,ab Peite Bao,c Anirban Roy,d Yaxian Wang,c and Zhaohui Sua*

aState Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China

bUniversity of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100039, P. R. China

cExxonMobil Asia Pacific R&D., Ltd., 1099 Zixing Road, Shanghai, 200241, P. R. China

dAnasys Instruments Corp., 325 Chapala Street, Santa Barbara, CA 93101, USA

Figure S1. Schematic illustration of (a) the contact mode AFM-IR setup, and (b) the LTA

experiment.

Figure S2. AFM phase images of HIPP-1 (a, b) and HIPP-2 (c, d) at different resolutions.