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In this work, a new kind of the hydrophilic CaCO 3 nanoparticles modified by polyethylene glycol phosphate (PGP) was designed for the in-situ preparation of poly (ethylene terephthalate) (PET). It was confirmed that PGP induced the growth of calcite and coated the surface of calcite by the covalent bond. PGP not only adjusts the morphology and the size of CaCO 3 nanoparticles, but...
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