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P(g2T-TT)

CAS Number 2058240-28-9

Luminosyn™ Polymers, Materials

Product Code M2475A6-100mg
Price $450

Stretchable Redox-Active Semiconducting Polymer

Designed for organic electrochemical transistors with microsecond switching speed


Overview | Specifications | MSDS | Literature and Reviews | Technical Support


P(g2T-TT) is a copolymer with a backbone alternating thienothiophene (TT) and 2,2'-bithiophene (BT) units with triethylene glycol (TEG) side chains in the 3,3′ positions of the bithiophene repeating units. The triethylene glycol side chains can facilitate hydration and ion penetration without compromising electronic mobility by shifting the mode of operation of aqueous electrolyte-gated transistors from interfacial to bulk doping/transport.

With triethylene glycol side chains, P(g2T-TT) films can uptake a much higher density of ions while showing a much lower degree of hydration than PEDOT:PSS films. The P(g2T-TT) films can also show a high degree of molecular ordering during electrochemical switching, demonstrating complete and reversible electrochromism and high volumetric capacitance at low operating biases. Bulk doping of P(g2T-TT) by hydrated ions allows for extraction of the volumetric capacitance of C*=240 F/cm3, a value almost six times higher than that of PEDOT:PSS, indicating a higher density of ion-accessible sites.

Conjugated semiconducting polymer

Stretchable Redox-Active Polymer

Highly desirable for OECTs

High purity P(g2T-TT)

Large Batch Luminosyn™

High purity with batch-specific GPC data

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Simple Worldwide Shipping

Reliable delivery via tracked courier

High quality P(g2T-TT)

High Density of Ion-Accessible Sites

With low degree of hydration

The Luminosyn™ Range


High Purity Materials: Purified by Soxhlet extraction with methanol, hexane, and chlorobenzene under argon atmosphere.
Batch-Specific Data: Confidence in your materials with batch-specific GPC data for your thesis or publications.
Large Quantity Orders: Plan your experiments with confidence using polymers from the same batch.

General Information


CAS Number 2058240-28-9
Full Name Poly[2-(3,3′-bis(2-(2-(2-methoxyethoxy)ethoxy)ethoxy)-[2,2’-bithiophen]-5-yl)thieno[3,2-b]thiophene]
Chemical Formula (C28H34O8S4)n
HOMO/LUMO HOMO = 5.2 eV (Eg = 1.74 eV) [1]
Absorption λmax = 597 nm (in film)
Form Blue powder/fibers
Processing Solvents DMF, Chloroform (typically 5 mg/ml in chloroform)
Synonyms pg2T-TT, g2T-TT
Classification / Family Polythiophenes, Redox-active semiconducting polymer (RASP), Organic electrochemical transistors (OECTs), Electrocardiogram (ECG) recording, Biosensors

Batch Details


Batch Mw Mn PDI Stock info
M2475A6 4,332 2,378 1.82 In stock

Chemical Structure


P(g2T-TT) chemical structure
P(g2T-TT) chemical structure, CAS: 2058240-28-9

MSDS Documentation


MSDS iconP(g2T-TT) MSDS Sheet

Literature and Reviews


  1. R. Hallani et al. (2021); Regiochemistry-Driven Organic Electrochemical Transistor Performance Enhancement in Ethylene Glycol-Functionalized Polythiophenes, J. Am. Chem. Soc., 143 (29), 11007–11018; DOI: 10.1021/jacs.1c03516.
  2. Y. Zhang et al. (2023); Combined Optical, Gravimetric, and Electrical Operando Investigation of Structural Variations in Polymeric Mixed Conductors, Adv. Funct. Mater., 33 (16), 2214380. DOI: 10.1002/adfm.202214380.
  3. A. Giovannitti et al. (2016); Controlling the mode of operation of organic transistors through side-chain engineering, PNAS, 113 (43), 12017–12022; DOI: 10.1073/pnas.1608780113.

Technical Support


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