Photo‐ and thermal stabilities of poly(propylene) (PP)/SiO2 nanocomposites were studied by varying the particle size of the SiO2 nanoparticles. It was found that smaller SiO2 nanoparticles improved the stabilities of the nanocomposites by depressing the size of spherulites. The phenomenon was successfully explained within the infectious spreading model, where the spatial spreading of oxidation was delayed at the interfacial region between the spherulites.
Cover: Photo‐ and thermal stabilities of poly(propylene) (PP)/SiO2 nanocomposites with various sizes of the SiO2 nanoparticles were studied. The cover picture points out that both, decreasing the particle size of SiO2 and lowering the quenching temperature in making the sample films improved the stability of the nanocomposites. The results strongly suggested that smaller spherulite sizes lead to higher stability of the nanocomposites. Further details can be found in the article by K.‐I. Sumino, T. Taniike, M. Terano,* and G. A. George on page 135.
Cover: Photo-and thermal stabilities of poly(propylene) (PP)/SiO 2 nanocomposites with various sizes of the SiO 2 nanoparticles were studied. The cover picture points out that both, decreasing the particle size of SiO 2 and lowering the quenching temperature in making the sample films improved the stability of the nanocomposites. The results strongly suggested that smaller spherulite sizes lead to higher stability of the nanocomposites. Further details can be found in the article by K.-I. Sumino, T. Taniike, M. Terano,* and G. A. George on page 135.
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