Electric field induced orientation of polymer chains in macroscopically aligned electrospun polymer nanofibers

MV Kakade, S Givens, K Gardner, KH Lee… - Journal of the …, 2007 - ACS Publications
The results presented in this work show for the first time that an electric field used to
macroscopically align polymer nanofibers can also align polymer chains parallel to the fiber …

Structure and orientation of interfacial proteins determined by sum frequency generation vibrational spectroscopy: method and application

S Ye, F Wei, H Li, K Tian, Y Luo - … in protein chemistry and structural biology, 2013 - Elsevier
In situ and real-time characterization of molecular structures and orientation of proteins at
interfaces is essential to understand the nature of interfacial protein interaction. Such work …

The use of rotation matrices in the mathematical description of molecular orientations in polymers

M Van Gurp - Colloid and polymer science, 1995 - Springer
The orientational distribution of chain segments or crystals in polymeric materials is most
conveniently described as a series expansion of rotation matrix elements. Rotation matrices …

Keratin orientation in wool and feathers by polarized Raman spectroscopy

L Rintoul, EA Carter, SD Stewart… - … : Original Research on …, 2000 - Wiley Online Library
Good quality polarized Raman spectra of a single wool fiber and an intact feather barbule
are presented. The intensity ratio of the α‐helix component of the amide I band measured …

Characterization of the structure and crystalline polymorphism present in aliphatic polyketones by Raman spectroscopy

JM Lagaron, AK Powell, NS Davidson - Macromolecules, 2000 - ACS Publications
Raman spectroscopy has been used for the first time for the characterization of perfectly 1: 1
alternating α-olefin: carbon monoxide aliphatic polyketones produced by the polymerization …

A study on solid-state drawn fibers of polyethylene by confocal Raman microspectrometry: evaluation of the orientation profiles of amorphous and crystalline phases …

C Fagnano, M Rossi, RS Porter, S Ottani - Polymer, 2001 - Elsevier
Polarized Raman macrospectrometry and confocal Raman microspectrometry have been
used to evaluate the uniaxial draw of polyethylene (PE) at a draw ratio of∼ 6. The draw was …

Measurement of orientation and crystallinity in uniaxially drawn poly (ethylene terephthalate) using polarized confocal Raman microscopy

NJ Everall - Applied spectroscopy, 1998 - opg.optica.org
Polarized confocal Raman microscopy has been used to measure molecular orientation in
uniaxially drawn poly (ethylene terephthalate)(PET) films, prepared with draw ratios from 1 …

Craze morphology and molecular orientation in the slow crack growth failure of polyethylene

JM Lagarón, G Capaccio, LJ Rose… - Journal of applied …, 2000 - Wiley Online Library
An optical microscopy study and a micro‐Raman spectroscopy study were carried out on
polyethylene samples subjected to an environmental stress crack resistance (ESCR) test …

Use of polarized resonance Raman spectroscopy of a polyene probe, and FT-IR dichroism, to probe amorphous-phase orientation in uniaxially drawn poly (ethylene)

N Everall, J Chalmers, P Mills - Applied spectroscopy, 1996 - opg.optica.org
The linear diphenyl polyene Φ-(C= C-) _4Φ has been investigated as a resonant Raman-
active probe for molecular orientation, suitable for incorporation into polymers prior to melt …

Molecular and lamellar orientation of α-and β-transcrystalline layers in polypropylene composites by polarized confocal micro-raman spectroscopy: Raman imaging by …

MR Fernandez, JC Merino… - Applied …, 2000 - journals.sagepub.com
Crystallization of isotactic polypropylene (iPP) from the melt in the presence of poly
(ethyleneterephthalate)(PET) fibers has been shown to produce preferential nucleation at …