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Chemical Structure| 24157-81-1 Chemical Structure| 24157-81-1

Structure of 2,6-Diisopropylnaphthalene
CAS No.: 24157-81-1

Chemical Structure| 24157-81-1

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Ford, Michael J ; Telles, Rodrigo ; Porcincula, Dominique H ; Reyes, Catherine G ; Paul, Sophie ; Hendrix, Isaiah , et al.

Abstract: This study aims to tune rheological properties of liquid crystal elastomers (LCEs) through a strategic approach, leveraging the differing reaction rates of and primary and secondary amines with acrylate monomers or the inclusion of processing additives to enable amenability to advanced manufacturing. We found that varying the time of oligomerization at elevated temperatures of amine-functional monomers with acrylate-functional monomers enabled simple control of rheological properties. Additionally, we could also control rheological properties by introducing reinforcing fillers or organic solvents. By varying the oligomerization conditions, we achieved a broad range of viscosities, from 1.1 Pa s to 560 Pa s as measured at 60 °C. When the rheological properties were varied through the incorporation of various solid and liquid inclusions, viscosities could range from less than 1 Pa s to nearly 1000 Pa s when measured at 60 °C. The shape morphing capabilities that are intrinsic to LCEs and the mechanical properties were also characterized. We find that the oligomerization conditions and the addition of fillers influence shape morphing and energy absorption, as characterized by the stress−strain characteristics, further suggesting their potential to be used in energy dissipation applications where performance can be turned. Last, we demonstrate how the range of accessible rheological properties grants formulations amenable to various advanced manufacturing techniques.

Keywords: liquid crystal elastomers ; rheological properties ; viscosity control ; formulation science ; additive manufacturing ; advanced manufacturing

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Product Details of [ 24157-81-1 ]

CAS No. :24157-81-1
Formula : C16H20
M.W : 212.33
SMILES Code : CC(C1=CC2=CC=C(C(C)C)C=C2C=C1)C
MDL No. :MFCD00021648

Safety of [ 24157-81-1 ]

GHS Pictogram:
Signal Word:Danger
Hazard Statements:H302-H319-H332-H372-H400
Precautionary Statements:P260-P264-P270-P273-P280-P301+P312+P330-P304+P312-P305+P351+P338-P314-P337+P313-P391-P501
Class:9
UN#:3077
Packing Group:
 

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