Polystyrene and poly(methyl methacrylate) interfaces reinforced with diblock carbon nanotubes
Polystyrene and poly(methyl methacrylate) interfaces reinforced with diblock carbon nanotubes
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二嵌段碳纳米管增强聚苯乙烯和聚甲基丙烯酸甲酯界面
DOI:
10.1002/pen.25665
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发表时间:
2021
影响因子:
3.2
通讯作者:
Grady, Brian P.
中科院分区:
文献类型:
--
作者:
Seyni, Fatoumata Ide;Barrett, Lawrence;Crossley, Steven;Grady, Brian P.
An asymmetric double cantilever beam test was used to determine the ability of carbon nanotubes with varying chemistry along their lengths, that is, diblock nanotubes, to compatibilize the polystyrene/poly(methyl methacrylate) (PS/PMMA) interface. PS molecules were grafted primarily to one of the blocks to cause that block to migrate to the PS phase since otherwise both blocks would prefer to reside in PMMA. Fracture toughnesses increased monotonically with increasing diblock carbon nanotube concentration and maximum values were like those for block copolymer‐reinforced interfaces while single‐chemistry nanotubes showed no reinforcing effect. However, the abrupt increase in fracture toughness with added compatibilizer indicative of a transition to crazing was not found consistent with nanotubes suppressing crazing in homopolymers. Scanning electron microscopy images of the fractured surfaces show agglomerates of carbon nanotubes present which are likely limiting the efficacy of carbon nanotubes at toughening the interface.
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DOI:
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发表时间:
1999
期刊:
影响因子:
--
作者:
B. Bernard;H. Brown;C. Hawker;A. Kellock;T. Russell
通讯作者:
T. Russell
影响因子:
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S. Kumar;T. Rath;B. B. Khatua;A. K. Dhibar;C. Das
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C. Das
DOI:
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发表时间:
2010
期刊:
影响因子:
--
作者:
Chih;A. Yang
通讯作者:
A. Yang
影响因子:
5.9
作者:
Barrett, Lawrence;Ide Seyni, Fatoumata;Komarneni, Mallikharjuna Rao;Zapata-Hincapie, John A.;Glatzhofer, Daniel T.;Grady, Brian P.;Crossley, Steven
通讯作者:
Crossley, Steven
DOI:
--
发表时间:
1993
期刊:
影响因子:
--
作者:
J. Washiyama;E. Kramer;C. Hui
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C. Hui