聚甲基丙烯酸甲酯/镓纳米复合物的动力学弛豫行为

周学懋; 陈晓萌; 吴学邦; 水嘉鹏; 朱震刚

doi:10.7498/aps.60.036102

摘要

通过原位自由基聚合方法制备了聚甲基丙烯酸甲酯(PMMA)以及含镓(Ga)质量分数为11.3%和13.5%的PMMA/Ga纳米复合材料.在玻璃化转变温度及以上温区,利用能量耗散技术研究PMMA/Ga纳米复合物的动力学弛豫行为,发现随着Ga含量的增加,复合物的α弛豫峰移向高温但峰高降低.此外,还定量研究了Ga含量对PMMA/Ga复合物的α' 弛豫的影响,并作出了相应的解释.

关键词:

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 α relaxation of the nanocomposites increase with the increasing Ga content, but the peak heights of α relaxation decrease. Besides, the composition-dependent dynamics of the α' relaxation in PMMA/Ga nanocomposites was also studied.

Keywords:

作者及机构信息

1.
中国科学院固体物理研究所,中国科学院材料物理重点实验室,合肥 230031

基金项目: 国家自然科学基金(批准号:50803066, 10874182和10674135)资助的课题.

Authors and contacts

1.
Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China

参考文献

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施引文献

[1]	Shonaike G O, Simon G P 1999 Polymer Blends and Alloys (New York: Academic Press)
[2]	Gross S, Camozzo D, Noto V D, Armelao L, Tondello E 2007 Eur. Polym. J. 43 673
[3]	Li M L, Fu X Y, Sun H N, Zhao H A, Li C, Duan Y P, Yan Y, Sun M H 2009 Acta Phys. Sin. 58 5604 (in Chinese) [李美丽、付兴烨、孙宏宁、赵洪安、李丛、段永平、闫元、孙民华 2009 58 5604]
[4]	Wang X Y, Chen Y, Zhang N Y, Zhao L P, Pang Y T, Wang W K 2007 Acta Phys. Sin. 56 4004 (in Chinese) [王秀英、陈莹、张宁玉、赵丽萍、庞岩涛、王文魁 2007 56 4004] [5] Fang Q, Wang Q, Zhao Z L, Dong Y D 2007 Acta Phys. Sin. 56 1292 (in Chinese) [方祺、王庆、赵哲龙、董远达 2007 56 1292]
[5]	Guo X Z, Zhou H W, Zhang L L, Wu W H, Zhang J L, Huang Y N 2010 Acta Phys. Sin. 59 0417 (in Chinese) [郭秀珍、周恒为、张丽丽、吴文惠、张晋鲁、黄以能 2010 59 0417]
[6]	Cheng W D, Sun M H, Li J Y, Wang A P, Sun Y L, Liu F, Liu X J 2006 Acta Phys. Sin. 55 6673 (in Chinese) [程伟东、孙民华、李佳云、王爱屏、孙永丽、刘芳、刘雄军 2006 物理学报 55 6673] [8] Chinthamanipeta P S, Kobukata S, Nakata H, Shipp D A 2008 Polymer 49 5636
[7]	Chen X M, Fei G T, Zheng K 2009 J. Phys.: Condens. Matter 21 245403
[8]	He H, Fei G T, Cui P, Zheng K, Liang L M, Li Y, Zhang L D 2005 Phys. Rev. B 72 073310
[9]	Wang Q, Zhou Z C, Han F S 2004 Acta Phys. Sin. 53 3829 (in Chinese) [王强、周正存、韩福生 2004 53 3829]
[10]	Wang Y Z, Ding X D, Xiong X M, Zhang J X 2007 Rev. Sci. Instrum. 78 103907
[11]	Li J, Zhang Y, Zhang S C 1996 Acta Phys. Sin. 45 1359 (in Chinese) [李健、张烨、张声春 1996 45 1359]
[12]	Fang Q F, Ge T S 1993 Acta Phys. Sin. 42 458 (in Chinese) [方前锋、葛庭燧 1993 42 458]
[13]	Liu J M 1997 Acta Phys. Sin. 46 2408 (in Chinese) [刘军民 1997 46 2408]
[14]	Liu W, Zhang Y M, Wu X S, Zhang H L, Chen C S 2006 Acta Phys. Sin. 55 5996 (in Chinese) [刘卫、张艳敏、吴修胜、张华力、陈初升 2006 55 5996]
[15]	Wu X S, Yang C L, Chen Z J, Chen C S, Liu W 2009 Acta Phys. Sin. 58 6419 (in Chinese) [吴修胜、杨春利、陈志军、陈初升、刘卫 2009 58 6419]
[16]	Hiki Y, Kosugi T 2005 J. Non-cryst. Solids 351 1300
[17]	Zhou H W, Zhang J L, Huang Y N, Ying X N, Zhang L, Wu W H, Shen Y F 2007 Acta Phys. Sin. 56 6547 (in Chinese) [周恒为、张晋鲁、黄以能、应学农、张亮、吴文惠、沈异凡 2007 56 6547]
[18]	Wu X B, Zhu Z G, Shang S Y, Xu Q L, Shui J P, Zhang G Z 2007 J. Phys.: Condens. Matter 19 466102
[19]	Liu Y S, Shui J P 1998 Acta Phys. Sin. 47 778 (in Chinese) [刘咏松、水嘉鹏 1998 47 778]
[20]	Wu X B, Shang S Y, Xu Q L, Shui J P, Zhu Z G 2007 Acta Phys. Sin. 56 4798 (in Chinese) [吴学邦、尚淑英、许巧玲、水嘉鹏、朱震刚 2007 56 4798] [23] Zhu Z G, Zu F Q, Guo L J, Zhang B 2004 Mater. Sci. Eng. A 370 427
[21]	Di Cicco A 1998 Phys. Rev. Lett. 81 2942
[22]	Qian R Y 2000 Some Basic Physical Problems of Macromolecular Condensed State (Changsha: Hunan Science and Technology Press) (in Chinese) [钱人元 2000 无规与有序——高分子凝聚态的基本物理问题研究 (长沙: 湖南科学技术出版社)]
[23]	Wu X B, Zhou X M, Liu C S, Zhu Z G 2009 J. Appl. Phys. 106 013527
[24]	Wu X B, Shang S Y, Xu Q L, Liu C S, Zhu Z G, Zhang G Z 2008 Appl. Phys. Lett. 93 011910
[25]	Wu J R, Huang G S, Pan Q Y, Qu L L, Zhu Y C, Wang B 2006 Appl. Phys. Lett. 89 121904
[26]	Nowick A S, Berry B S 1972 Anelastic Relaxation in Crystalline Solids (New York: Academic Press)
[27]	Wu X B, Zhu Z G 2007 Appl. Phys. Lett. 90 251908
[28]	Flory P J 1953 Principles of Polymer Chemistry (New York: Cornell University Press)
[29]	Haramina T, Kirchheim R 2007 Macromolecules 40 4211
[30]	Seydibeyo Agˇ lu M , i S, Güngr N, Ece O I,Güner F S 2010 J. App. Polym. Sci. 116 832
[31]	Jiang M 1988 Physical Chemistry of Polymer Alloys (Chengdu: Sichuan Education Press) (in Chinese) [江明 1988 高分子合金的物理化学(成都: 四川教育出版社)]

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