Boron Molecular Inc.

Raleigh,  NC 
United States
http://www.boronmolecular.com/
  • Booth: 233

Boron Molecular is a fine chemical manufacturing company which supplies a range of early and late stage intermediates into the pharmaceutical and medicinal chemistry industries. Utilizing this experience and the stringent requirements for the provision of quality product, we have extended our interest into the materials science field and are currently supplying materials and advanced stage intermediates for use in the development and manufacture of OLED displays and a number of other niche markets in the polymer, coatings and adhesives fields. 


 Products

  • BM1542
    2-cyanobutanyl-2-yl 3,5-dimethyl-1H-pyrazole-1-carbodithioate

    CAS Number: [1883264-36-5]...

  • 2-cyanobutanyl-2-yl 3,5-dimethyl-1H-pyrazole-1-carbodithioate (BM1542) is a dithiocarbamate chain transfer agent (CTA), also referred to as a RAFT Agent, that can control chain growth in free radical polymerization, producing polymers with well-defined molecular weights, and low to moderate polydispersities. 

    BM1542 can be used to control homo- and co-polymerisation of acrylic acid, acrylates, acrylamides, and styrenes (2o MAMs), and LAMs such as vinyl acetate. Additionally, BM1542 can be used to polymerise methacrylates and methacrylamides, with good MW control, and broad polydispersities.  It can be used to make MAM-LAM block copolymers. It is soluble in organic media.

    BM1542 is a stable, low odour solid that can be provided from gram to metric tonne quantities.

    Specifications

    Appearance:                                                                      Pale yellow to tan solid

    Purity (1H NMR):                                                               >95%

    Melting Point:                                                                   116-122°C

    Storage

    Store at ≤25°C and protect from light. Recommended retest date is 2 years.

    Literature

    Dithiocarbamate RAFT agents with broad applicability – the 3,5-dimethyl-1H-pyrazole-1-carbodithioates, Polym. Chem., 2015, Accepted Manuscript; DOI: 10.1039/C5PY01382H

  • BM1608 (NaDFOB)
    Sodium difluoro(oxalate)borate (NaDFOB)...

  • Na-ion Battery Electrolytes

    Owing to the low cost and high natural abundance of sodium (Na), Na-ion batteries (NIBs) have been extensively studied very recently. The most common electrolyte formulation for NIBs is NaClO4 or NaPF6 dissolved in carbonate solvents such as ethylene carbonate and propylene carbonate. NaClO4 is potentially explosive, however, and NaPFis sensitive to moisture, evolving highly corrosive HF. Since NIBs have been largely considered for stationary energy storage due to its lower power density, and the deployment of NIB stacks would normally require a large quantity of electrolyte, an electrolyte that is both highly safe and efficient is critical. Boron Molecular is teaming up with the University of Wollongong to help the research community to provide alternative candidates by enabling them to readily access alternative high quality electrolyte formulations.

    Sodium-difluoro(oxalato)borate (NaDFOB)

    Empirical Formula:  C2BF2NaO4

    Molecular Weight:  143.77

    Description:  White powder. Slowly reacts with water.

    Application

    Sodium difluoro(oxalate)borate (NaDFOB) is an electrolyte salt for Na-ion batteries. The electrolytes prepared by dissolving this compound in carbonate-based solvents have a wide electrochemical stability window, low viscosity, and good conductivity. It does not yield HF when reacted with water. These could improve the safety of the future Na-ion batteries, which are expected to be used for large-scale electricity storage.

                                       

    Fig 1 View along the [100] direction showing bonded chains in the crystal structure of NaDFOB Na, C, O, B and F are represented by the green, black, yellow, red and blue spheres respectively.

                               

    Fig 2 Cycling performances at different rates of Na/Na0.44MnO2 half cells using NaX (X = DFOB, CIO4and PF6) based electrolytes. (NaDFOB: black, NaCIO4: red and NaPF6: blue)

    Compared with NaClO4 and NaPF6 which are commonly used in the literature, this compound enables better compatibility with a couple of most studied compounds for Na-ion batteries, such as carbonaceous materials, TiO2, and Prussian blue, and therefore better rate capability and cycling performance. Na-ion batteries are believed to hold promises for large-scale energy storage such as smart-grid where the market has been predicted to be well over billions of dollars per year, NaDFOB could help the development of reliable batteries to meet the great demand for sustainable energy.

    Reference:

     1.    J. Chen, Z. Huang, C. Wang, S. Porter, B. Wang, W. Lie, H. K. Liu, “Sodium-difluoro(oxalato)borate (NaDFOB): A new electrolyte salt for Na-ion batteries”, Chemical Communications, 2015, 51, 9809.

  • Polyaniline (PANI)
    DNNSA doped Polyaniline Emeraldine Salt (PANI-ES)...

  • POLYANILINES

    Solution processable polyanilines

    Polyaniline (PANI) is a semi-flexible, rod-type, conducting polymer with high intrinsic electrical conductivity. PANI is unique among conducting polymers in that its conductivity can be reversibly controlled either electrochemically or chemically.  Commercial applications of polyaniline include, electrostatic dissipation, anticorrosion coatings, rechargeable batteries, various electronic devices, sensor, organic photovoltaics, and separation membranes. The widespread use of PANI, however, has been severely hampered by its limited organic solution processability.

    Boron Molecular can now provide xylene soluble solutions of doped PANI emeraldine salts in commercial quantities.

    DNNSA doped Polyaniline Emeraldine Salt (PANI-ES)

           

    Dopant:                       Dinonylnaphthalene sulfonic acid (DNNSA)

    Molecular Weight:       MP 55,000; Mn 43,000; Mw 66,000.                                                

    Polydispersity:           1.52

    Conductivity:              10 S/cm (thin film)

    Colour/UV-Vis transmission:    Dark emerald green

    Processability:           Soluble - xylene, toluene, NMP

              Insoluble - water, acetone, 2-propanol

    Production:               Continuous production @100g/h with no run to run variation