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Dielectric and Rheological Characterization of Chiral Cellulose Nanocrystal Composites

Location

Material Measurement Laboratory, Materials Science and Engineering Division

RO# Location
50.64.21.C0299 Gaithersburg, MD

Please note: This Agency only participates in the February and August reviews.

Advisers

Name E-mail Phone
Obrzut, Jan jan.obrzut@nist.gov 301.975.6845

Description

This research is focused on the development and use of cellulose nanocrystals (CNC) in polymer composite materials. The controllable fabrication of these materials requires the identification, understanding and quantification of the parameters that dictate the final film morphology (pitch, chirality), and the resulting dielectric and mechanical properties. Of our particular interest is quantification and control of affinity to moisture and shear transfer ability of CNC interfaces in their heliocoidal assemblies.

References:

[1] Bharath Natarajan et al; “Dielectric Characterization of Confined Water in Chiral CelluloseNanocrystal Films”  ACS Appl. Materials and Interfaces: v9 pp.14222 (2017)

[2] Bharath Natarajan et al; “Binary Cellulose Nanocrystal Blends for Bioinspired Damage Tolerant Photonic Films”, Adv. Func Materials: v28,pp.1800032 (2018)

Keywords:
Cellulose nanocrystal; Chiral nematic structure; Water confinement; Dielectric properties; Helicoidal composites

Eligibility

Citizenship:  Open to U.S. citizens
Level:  Open to Postdoctoral applicants

Stipend

Base Stipend Travel Allotment Supplementation
$72,028.00 $3,000.00
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