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    1. TFPX;1,4-Bis(difluoromethyl)Benzene


    Chemical Name 1,4-Bis(difluoromethyl)Benzene
    Synonyms
    • α ,α ,α’,α’-tetrafluoro-p-xylene;
    • p-xylene ALPHA,ALPHA,ALPHA’,ALPHA’-Tetrafluoride
    CAS 369-54-0
    Boiling Point 83~84℃ @ 30 mmHg;168.9℃@760mmHg
    Formula C8 H6 F4
    Molecular Wt. 178.13 g/mole
    Density 1.225 g/cm3
    Purity wt.% 99.0 min.
    Molecular Structure
    Application
    preparation of Parylene AF4 film
    • Introduction of moiety  into organomolecular.
    • Preparation of BFB(CAS 651-12-7)
    • Synthesis of CFB(CAS 2629-68-7)

     

    2. CFB;1,4-Bis(Chlorodifluoromethyl)Benzene

    Chemical Name

    1,4-Bis(Chlorodifluoromethyl)Benzene

    Synonyms

    • α ,α’-Dichloro-α ,α ,α’,α’-tetrafluoro-p-xylene
    • p-Bis(chlorodifluoromethyl)benzene
    • TFPX-d:chlorde

    CAS

    2629-68-7

    Melting Point

    11~12 ℃

    Boiling Point

    55.5℃ @ 3.8 mmHg;208.1℃@760mmHg

    Vapor Pressure

    0.313 mmHg@25℃

    Formula

    C8 H4 Cl2 F4

    Molecular Wt.

    247.02 g/mole

    Density

    1.467 g/cm3

    Purity wt.%

    99.0 min.

    Molecular Structure

    Application
    • Preparation of AF4(CAS 3345-29-7)
    • Intermediate of pharmaceutic medicine, agricultural pesticide or thermoplastic polymer.

     

    3. BFB;1,4-Bis(Bromodifluoromethyl)Benzene

    Chemical Name

    1,4-Bis(Bromodifluoromethyl)Benzene

    Synonyms

    • α ,α’-Dibromo-α ,α ,α’,α’-tetrafluoro-p-xylene
    • p-Bis(Bromodifluoromethyl)Benzene

    CAS

    651-12-7

    Melting point

    5.6 ℃

    Boiling Point

    235.5℃@760mmHg

    Formula

    C8 H4 Br2 F4

    Molecular Wt.

    335.92 g/mole

    Density

    1.95 g/cm3 @20℃

    Purity wt.%

    99.0 min.

    Molecular Structure

    Application
    • Analogic Grinard reagent preparation
    • Preparation of AF4(CAS 3345-29-7)
    • Intermediate of pharmaceutic medicine, agricultural pesticide or thermoplastic polymer.

     

    4. AF4-Octafluoro-(2,2)-paracyclophane

    Chemical Name

    Octafluoro-(2,2)-paracyclophane

    CAS

    3345-29-7

    Molecular Structure

    Formula

    C16 H8 F8

    Purity wt.%

    99.0 min.

    Molecular Wt.

    352.22 g/mole

    Melting point

    249.5℃

    Density

    1.47 g/cm3 @ 20℃

    Parylene AF4 film Properties

     

    • most crevice penetration of Parylene AF4 film
    • Specialties
      1. Unmatched UV stability
      2. Excellent Thermal Stability at High Service Temperature (350 ℃)
      3. Completely Conformal Coating
      4. Superior Crevice Penetration , Pin Hole Free

    • Barrier Properties
      1. Chemical insolubility and Solvent Resistant
      2. Low Water Absorption ,Hydrophobic Properties
      3. Low Gas Permeability , No out-gassing

    • Physical & Mechanical Properties
      1. Lightweight and Ultra-thin
      2. Low CTE
      3. Low Coefficient of Friction , Good Lubricity , Anti- stick
      4. Abrasion Resistance
      5. Stabilization of Components and Structures
      6. Particulate Immobilization
    • Electrical Properties
      1. Electrical insulation
      2. High Dielectric Strength, High Volume Resistivity ,Surface Resistivity
      3. Low Dissipation Factor
      4. Low Dielectric Constant

    • Biocompatibility and Bio-stability

    • APPLICATIONS OF PARYLENE AF4 FILM
      1. Aerospace
      2. Military
      3. Electronic
      4. Medical
      5. Industrial
      6. Semiconductor