Abstract
Naphthalene-labeled polypropylene (PP) was prepared by melt reaction of maleic anhydride-grafted-polypropylene (PP-g-MA) with 1-aminonaphthalene in a Barabender mixer chamber. The structure of the product was analyzed with fourier transform infrared (FT-IR), ultraviolet (UV) and fluorescence. The results showed that naphthyl groups grafted onto the PP molecular chains through the imide bonds formed between MA and 1-aminonaphthalene. The content of the chromophores was 1.8×10-4 mol g-1 measured by elemental analysis. Isothermal crystallization behavior was studied by differential scanning calorimeter (DSC). Labeled PP had a higher crystallization rate than PP-g-MA. Wide-angle X-Ray diffraction (WAXD) analysis revealed that labeled PP had higher crystallinity than PP-g-MA.
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Yang, J., Chen, G., Liu, W. et al. Preparation, Characterization, and Crystallization of Naphthalene-Labeled Polypropylene. Polym J 32, 995–998 (2000). https://doi.org/10.1295/polymj.32.995
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DOI: https://doi.org/10.1295/polymj.32.995