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Stress‐strain behavior and dynamic mechanical properties of poly(1,1‐dimethyl‐1‐sila‐ cis ‐pent‐3‐ene), poly(1‐methyl‐1‐phenyl‐1‐sila‐ cis ‐pent‐3‐ene) and of these polymers after crosslinking with sulfur
Author(s) -
Chen Min Wei,
Liao Charles X.,
Weber William P.
Publication year - 1995
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760350206
Subject(s) - materials science , dynamic mechanical analysis , composite material , modulus , ultimate tensile strength , polymer , flexural modulus , elongation , dynamic modulus
Mechanical properties of polymers can be described by their stress/strain curves and by their behavior under dynamic mechanical thermal analysis (DMTA). The purpose of this paper is to report such mechanical properties for two unsaturated polycarbosilanes: poly(1, 1‐dimethyl‐1‐sila‐ cis ‐pent‐3‐ene) (I) and poly(1‐methyl‐1‐phenyl‐1‐sila‐ cis ‐pent‐3‐ene) (II). Tensile strength, elongation at break, modulus, bending modulus, T g , and tan δ for I, II and for sulfur crosslinked I and II have been measured. The influence of polymer molecular weight, quantity of crosslinking agent, cure time, presence of carbon black filler, the effect of crosshead speed, and frequency on these properties was investigated.