Reinforcement on the thermal stability of poly(methyl methacrylate)of cellulose nanocrystals modified with polystyrene

YIN Yuanyuan, TIAN Xiuzhi, ZHU Chunbo, JIANG Xue, WANG Hongbo, GAO Weidong

Journal of Nanjing Forestry University (Natural Sciences Edition） ›› 2016, Vol. 40 ›› Issue (05) : 138-142.

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南京林业大学学报（自然科学版）
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Journal of Nanjing Forestry University (Natural Sciences Edition） ›› 2016, Vol. 40 ›› Issue (05) : 138-142. DOI: 10.3969/j.issn.1000-2006.2016.05.022

Reinforcement on the thermal stability of poly(methyl methacrylate)of cellulose nanocrystals modified with polystyrene

  • YIN Yuanyuan, TIAN Xiuzhi, ZHU Chunbo, JIANG Xue*, WANG Hongbo, GAO Weidong
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Abstract

In order to improve the thermal stability and compatibility with organic materials, cellulose nanocrystals(CNCs)were grafted by polystyrene chains via surface-initiated atom transfer radical polymerization(SI-ATRP). The chemical structure and thermal stability were characterized by the Fourier transform infrared spectroscopy(FTIR)and thermogravimetric analysis(TGA), revealing that polystyrene chains were successfully grafted on the surface of CNCs and the degradation temperature of CNCs increased from 150 ℃ to 220 ℃. Poly(methyl methacrylate)(PMMA)nanocomposites were prepared with the solution casting method and were examined by the TGA and UV-vis spectrophotometer. The remaining rate of PMMA/4%CNC was increased by 100% compared to pure PMMA. The transmittance of the PMMA/1% CNCs approached 89%, which was close to that of the pure PMMA(91%). This research provides a novel method to improve the thermal stability of PMMA/CNC nanocomposite on the premise of remaining the excellent transparency.

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YIN Yuanyuan, TIAN Xiuzhi, ZHU Chunbo, JIANG Xue, WANG Hongbo, GAO Weidong. Reinforcement on the thermal stability of poly(methyl methacrylate)of cellulose nanocrystals modified with polystyrene[J]. Journal of Nanjing Forestry University (Natural Sciences Edition）. 2016, 40(05): 138-142 https://doi.org/10.3969/j.issn.1000-2006.2016.05.022

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