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聚苯乙烯改性纤维素纳米晶体对聚甲基丙烯酸甲酯热稳定性的增强作用(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2016年05期
Page:
138-142
Column:
研究论文
publishdate:
2016-09-30

Article Info:/Info

Title:
Reinforcement on the thermal stability of poly(methyl methacrylate)of cellulose nanocrystals modified with polystyrene
Article ID:
1000-2006(2016)05-0138-05
Author(s):
YIN Yuanyuan TIAN Xiuzhi ZHU Chunbo JIANG Xue* WANG Hongbo GAO Weidong
Key Laboratory of Eco-textiles of Ministry of Education, College of Textiles and Clothing, Jiangnan University, Wuxi 214122, China
Keywords:
surface-initiated atom transfer radical polymerization cellulose nanocrystals(CNCs) poly(methyl methacrylate)(PMMA) thermal stability transparency
Classification number :
O631
DOI:
10.3969/j.issn.1000-2006.2016.05.022
Document Code:
A
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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Last Update: 2016-10-30