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Stabilizing Polymeric Interface by Janus Nanosheet
Author(s) -
Guan Jipeng,
Gui Haoguan,
Zheng Yanyan,
You Jichun,
Li Yongjin,
Liang Fuxin,
Yang Zhenzhong
Publication year - 2020
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.202000392
Subject(s) - materials science , nanosheet , epoxy , porosity , janus , chemical engineering , composite material , nanotechnology , engineering
Abstract A strategy is proposed to stabilize the polymeric interface by using the irregular Janus nanosheet (JNS). The poly(vinylidene fluoride) (PVDF)/poly( l ‐lactic acid) (PLLA) at 60/40 (wt/wt) with a bi‐continuous structure is selected as the model melt blend, and the PMMA/epoxy JNS is synthesized and used as the compatibilizer. The JNS is preferentially located at the interface. The interfacial coverage by the JNS reaches a saturated state forming the interconnected jamming structure at 0.5 wt% of the JNS. The interface is thus stabilized which is well preserved after annealing at high temperature. After selectively etching PLLA, the robust PVDF porous material is derived with the JNS armored at the pore skeleton surface. The porous material provides a universal scaffold to achieve stable functional materials after filling the pores.