writer：Junyou Wang, Xinlin Yang*
keywords：Self-assemble heterocoagulation, Organic–inorganic composite
source：期刊
specific source：Colloid Polym. Sci., 286(3), 283-291 (2008). DOI: 10.1007/s00396-007-17679
Issue time：2008年
Raspberry-like poly(ethyleneglycol dimethacrylate-co-4-vinylpyridine)/silica (poly(EGDMA-co-VPy)/SiO2) core-corona composite was prepared by a self-assemble heterocoagulation based on a hydrogen-bonding interaction between the pyridyl group of poly(EGDMA-co-VPy) core
and the active hydroxyl group of silica corona. The raspberrylike composite was stable near the neutral environment with pH ranging from 5.0 to 8.0. The effects of the solvent and the
mass ratio of silica to polymer microsphere on the coverage of the silica corona on poly(EGDMA-co-VPy) core were investigated in detail. The resultant core-corona heterocoagulates were characterized with scanning electron microscope and the nature of the interaction between the polymer core particle and silica corona particle was identified as hydrogen bonding with Fourier Transform Infrared spectroscopy.