Recent advances in rheo-optical FTIR spectroscopy of polymers.
Strain-induced crystn. and oriental changes of sulfur-crosslinked natural rubber during repeated loading-unloading cycles was studied using rheo-optical Fourier transform IR spectroscopy. This technique provides a means to monitor strain-induced crystn. on-line to the mech. treatment and also yields detailed information in terms of the orientation of the polymer chains in the amorphous domains relative to those in the strain-crystg. domains.
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