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Cover Image, Volume 132, Issue 37
Publication year - 2015
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.42659
Subject(s) - vinyl acetate , cover (algebra) , ultimate tensile strength , polymer , polymerization , materials science , polymer chemistry , composite material , polymer science , chemical engineering , mechanical engineering , engineering , copolymer
Polyamide4 (PA4) has a high melting point, high tensile strength, and is biodegradable in various environments such as in soil, sea water, and activated sludge. The synthesis of azo‐PA4 made it possible to polymerize various vinyl monomers. Norioki Kawasaki, Naoko Yamano, and Atsuyoshi Nakayama synthesize a series of polyamide4‐block‐poly(vinyl acetate)s by radical polymerization of vinyl acetate using an azo macromolecular initiator composed of PA4. Increasing the PA4 content increased the tensile strength, whereas increasing the poly(vinyl acetate) content increased the elongation at break. The cover is a laser micrograph of the free surface of polyamide4‐block‐poly(vinyl acetate). (DOI: 10.1002/app.42466 )

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