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Nanoporous Membranes: Nanowrinkled and Nanoporous Polyethylene Membranes Via Entanglement Arrangement Control (Adv. Funct. Mater. 10/2012)
Author(s) -
Uehara Hiroki,
Tamura Takuya,
Kakiage Masaki,
Yamanobe Takeshi
Publication year - 2012
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201290060
Subject(s) - nanoporous , materials science , membrane , polyethylene , lamellar structure , copolymer , quantum entanglement , crystallization , chemical engineering , morphology (biology) , homogeneous , polymer chemistry , solvent , composite material , nanotechnology , polymer , organic chemistry , thermodynamics , chemistry , physics , quantum mechanics , engineering , quantum , genetics , biology
Molecular entangling of polymeric chains is considered a negative characteristic that restricts crystallization and results in inferior physical properties. On page 2048 , Hiroki Uehara and co‐workers demonstrate that using melt‐drawing and subsequent melt‐shrinking techniques allows for control of the entanglement positions of ultrahigh molecular weight polyethylene, resulting in a homogeneous lamellar morphology, similar to block copolymers. Such entanglement control also enables the preparation of nanoporous, but large‐area, membranes without any solvent processing.