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Chemical Structure| 128-97-2 Chemical Structure| 128-97-2

Structure of 128-97-2

Chemical Structure| 128-97-2

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Product Citations

Product Citations

Tran, Duyen K ; West, Sarah M ; Stewart, Anna E ; Kaminsky, Werner ; Jenekhe, Samson A ;

Abstract: N-type conjugated ladder polymers without side chains, such as BBL, have been shown to exhibit record-high mixed ionic-electronic transport properties, which have enabled diverse device applications. This study reports herein the design and synthesis of a series of dicyano-functionalized n-type conjugated ladder copolymers, BBL-x2CN, as new organic mixed ionic-electronic conductors (OMIECs). By combining the cyanation and random copolymerization design motifs, this study demonstrates that the electronic band structure (LUMO/HOMO energy levels) can be effectively tuned as a function of the copolymer composition of the dicyano functional group without compromising the unique planar polymer backbone intrinsic to BBL-type ladder polymers. Optimal mixed ionic-electronic transport properties probed via organic electrochemical transistors (OECTs) are found in BBL-202CN (20 mol%) devices that feature a high transconductance (≈3 mS), a good µC* value (≈2.8 FV−1cm−1s−1), and a fast transient response (τonoff = 40 ms/12 ms), which are substantially enhanced compared to those of the parent BBL of comparable molecular weight. The better OECT device performance found in BBL-202CN copolymer, compared to other copolymers, can be explained by a combination of improved crystallinity, delocalization length, and suppressed conformational disorder. These results provide new structure-property relationships with implications for the molecular engineering of high-performance n-type OMIECs.

Keywords: onjugated ladder polymers ; cyanation ; n-type conjugated polymers ; organic electrochemical transistors ; organic mixed ionic-electronic conductors ; random copolymers

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Product Details of [ 128-97-2 ]

CAS No. :128-97-2
Formula : C14H8O8
M.W : 304.21
SMILES Code : O=C(C1=C2C(C(O)=O)=CC=C(C(O)=O)C2=C(C(O)=O)C=C1)O
MDL No. :MFCD00004012
InChI Key :OLAPPGSPBNVTRF-UHFFFAOYSA-N
Pubchem ID :31422

Safety of [ 128-97-2 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H315-H319
Precautionary Statements:P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313
 

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