Synthesis of cross-linked polymer microspheres and pyrolysis conversion to polymer-derived ceramics

Dandan Sun; Feng Chen; Yan Gao; Yiguang Wang

doi:10.1111/ijac.12733

Synthesis of cross-linked polymer microspheres and pyrolysis conversion to polymer-derived ceramics

Dandan Sun, Feng Chen, Yan Gao^*, Yiguang Wang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The cross-linked polysilazane spherical particles were synthesized via a solvothermal process from a liquid polysilazane precursor. We found that the average size of obtained cross-linked polymer spheres is in the range of hundreds nanometer to about 10 μm by adjusting the amount of divinylbenzene cross-linker. Spherical ceramic particles were synthesized via the polymer-derived ceramics (PDCs) route. The XRD and SEM analysis on ceramic particles pyrolyzed below 1400°C showed that they were amorphous and maintained a smooth spherical morphology. When the polymer spherical particles were pyrolyzed at 1500°C, SiC/Si₃N₄ ceramics spheres were fabricated.

Original language	English
Pages (from-to)	992-998
Number of pages	7
Journal	International Journal of Applied Ceramic Technology
Volume	14
Issue number	5
DOIs	https://doi.org/10.1111/ijac.12733
Publication status	Published - 1 Sept 2017
Externally published	Yes

Keywords

particle size adjustment
polymer microspheres
polymer-derived ceramic

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10.1111/ijac.12733

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abstract = "The cross-linked polysilazane spherical particles were synthesized via a solvothermal process from a liquid polysilazane precursor. We found that the average size of obtained cross-linked polymer spheres is in the range of hundreds nanometer to about 10 μm by adjusting the amount of divinylbenzene cross-linker. Spherical ceramic particles were synthesized via the polymer-derived ceramics (PDCs) route. The XRD and SEM analysis on ceramic particles pyrolyzed below 1400°C showed that they were amorphous and maintained a smooth spherical morphology. When the polymer spherical particles were pyrolyzed at 1500°C, SiC/Si3N4 ceramics spheres were fabricated.",

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AU - Chen, Feng

AU - Gao, Yan

AU - Wang, Yiguang

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Y1 - 2017/9/1

N2 - The cross-linked polysilazane spherical particles were synthesized via a solvothermal process from a liquid polysilazane precursor. We found that the average size of obtained cross-linked polymer spheres is in the range of hundreds nanometer to about 10 μm by adjusting the amount of divinylbenzene cross-linker. Spherical ceramic particles were synthesized via the polymer-derived ceramics (PDCs) route. The XRD and SEM analysis on ceramic particles pyrolyzed below 1400°C showed that they were amorphous and maintained a smooth spherical morphology. When the polymer spherical particles were pyrolyzed at 1500°C, SiC/Si3N4 ceramics spheres were fabricated.

AB - The cross-linked polysilazane spherical particles were synthesized via a solvothermal process from a liquid polysilazane precursor. We found that the average size of obtained cross-linked polymer spheres is in the range of hundreds nanometer to about 10 μm by adjusting the amount of divinylbenzene cross-linker. Spherical ceramic particles were synthesized via the polymer-derived ceramics (PDCs) route. The XRD and SEM analysis on ceramic particles pyrolyzed below 1400°C showed that they were amorphous and maintained a smooth spherical morphology. When the polymer spherical particles were pyrolyzed at 1500°C, SiC/Si3N4 ceramics spheres were fabricated.

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KW - polymer-derived ceramic

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JO - International Journal of Applied Ceramic Technology

JF - International Journal of Applied Ceramic Technology

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ER -

Synthesis of cross-linked polymer microspheres and pyrolysis conversion to polymer-derived ceramics

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Keywords

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