Dynamic relaxation behaviors of poly( methyl methacrylate)/Ga nanocomposites

被引：2
|
作者：
Zhou Xue-Mao [1 ]
Chen Xiao-Meng [1 ]
Wu Xue-Bang [1 ]
Shui Jia-Peng [1 ]
Zhu Zhen-Gang [1 ]
机构：
[1] Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
来源：
ACTA PHYSICA SINICA | 2011年 / 60卷 / 03期
基金：
中国国家自然科学基金;
关键词：
relative energy dissipation; glass transition; mechanical relaxation; GLASS-TRANSITION; INTERNAL-FRICTION; MECHANICAL SPECTROSCOPY; PRESSURE;
D O I：
10.7498/aps.60.036102
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Two kinds of poly(methyl methacrylate)/gallium (PMMA/Ga) nanocomposites with different Ga contents (11.3% and 13. 5%) were prepared by free radical polymerization. The relaxation dynamics of PMMA/Ga nanocomposite above the glass transition temperature has been investigated by mechanical spectroscopy. It was found that the peak temperatures of a relaxation of the nanocomposites increase with the increasing Ga content, but the peak heights of alpha relaxation decrease. Besides, the composition-dependent dynamics of the alpha' relaxation in PMMA/Ga nanocomposites was also studied.
引用
收藏
页数：7
相关论文
共 34 条
  • [1] The solid state phase transition of gallium particles and its size dependence
    Chen, Xiao Meng
    Fei, Guang Tao
    Zheng, Kang
    [J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2009, 21 (24)
  • [2] Small angle X-ray scattering research of the relaxation and crystallization process in Cu60Zr30Ti10 amorphous alloy
    Cheng Wei-Dong
    Sun Min-Hua
    Li Jia-Yun
    Wang Ai-Ping
    Sun Yong-Li
    Liu Fang
    Liu Xiong-Jun
    [J]. ACTA PHYSICA SINICA, 2006, 55 (12) : 6673 - 6676
  • [3] Synthesis of poly(methyl methacrylate)-silica nanocomposites using methacrylate-functionalized silica nanoparticles and RAFT polymerization
    Chinthamanipeta, Pavan S.
    Kobukata, Shuji
    Nakata, Hiromichi
    Shipp, Devon A.
    [J]. POLYMER, 2008, 49 (26) : 5636 - 5642
  • [4] Deanin RD, 1999, PLAST ENGN, V52, P1
  • [5] Phase transitions in confined gallium droplets
    Di Cicco, A
    [J]. PHYSICAL REVIEW LETTERS, 1998, 81 (14) : 2942 - 2945
  • [6] FANG QF, 1993, ACTA PHYS SINICA, V42, P458
  • [7] Effect of Nb addition on the glass transition and crystallization kinetics of bulk Cu-Zr metallic glasses
    Fang Qi
    Wang Qing
    Zhao Zhe-Long
    Dong Yuan-Da
    [J]. ACTA PHYSICA SINICA, 2007, 56 (03) : 1292 - 1296
  • [8] Flory PJ, 1953, PRINCIPLES POLYM CHE
  • [9] PMMA:: A key macromolecular component for dielectric low-κ hybrid inorganic-organic polymer films
    Gross, Silvia
    Camozzo, Daniele
    Di Noto, Vito
    Armelao, Lidia
    Tondello, Eugenio
    [J]. EUROPEAN POLYMER JOURNAL, 2007, 43 (03) : 673 - 696
  • [10] Investigation on the crack healing effect in dimethyl phthalate series glassy materials
    Guo Xiu-Zhen
    Zhou Heng-Wei
    Zhang Li-Li
    Wu Wen-Hui
    Zhang Jin-Lu
    Huang Yi-Neng
    [J]. ACTA PHYSICA SINICA, 2010, 59 (01) : 417 - 421
1234