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The straight‐chain segment length distribution in xerogels of UHMWPE, which provide high drawability of gel‐derived fibers
Author(s) -
Pakhomov P.,
Galitsyn V.,
Khizhnyak Svetlana,
Tshmel A.
Publication year - 2007
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.26543
Subject(s) - materials science , composite material , ultimate tensile strength , fiber , modulus
A series of ultra‐high‐molecular‐weight reactor powders with different technological prehistory were utilized for obtaining fibers through the gel technology. The fibers prepared from some powders exhibited high draw ratios and good mechanical properties (Young's modulus and tensile stress) but other powders yielded fibers of very low drawability. The low‐frequency Raman study revealed that the straight‐chain‐segment (SCS) length distributions in dried gels prepared from powders of “drawable” group are bimodal, while the gels issued from powders unsuitable for fiber drawing have unimodal length distributions of SCS. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007