Polymer-related chemicals

Azo polymerization initiators

An azo polymerization initiator is a compound having an azo group (R-N=N-R'), which decomposes with heat and/or light, and forms carbon radical. The formed carbon radical is excellent in reactivity, and progresses polymerization and halogenation reactions of different types of vinyl monomers.

Water soluble Azo initiatorswater soluble

VA-086water soluble

  • Potential for introducing a hydroxyl into the terminus of polymer
  • 10 Hour half-life decomposition temperature: 86℃
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V-50water soluble

  • Used for superabsorbent polymer and flocculants
  • 10 Hour half-life decomposition temperature: 56℃(in water)
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VA-044water soluble

  • Non-nitrile water-soluble azo initiator having low decomposition temperature
  • 10 Hour half-life decomposition temperature: 44℃(in water)
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V-501water soluble

  • Non-halogen water-soluble azo initiator
  • 10 Hour half-life decomposition temperature: 69℃ (in water, as Na salt)
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VA-061water soluble

  • Soluble in acidic aqueous solution, potential for aqueous polymerization of non-halogen using organic acid like acetic acid.
  • 10 Hour half-life decomposition temperature: 61℃(at about 45℃ in acidic aqueous solution)
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VA-057water soluble

  • Potential for introducing carboxyl group into terminal of polymer
  • Zwitterionic structure
  • Can be used in a wide pH range(pH 3 to 9)
  • 10 Hour half-life decomposition temperature: 57℃
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Oil soluble Azo intiatorsoil soluble

V-601oil soluble

  • Non-nitrile azo initiator as an alternative to AIBN
  • With equivalent polymerization activity of AIBN. Efficiency of polymerization rises in alcohol solvents
  • 10 Hour half-life decomposition temperature: 66℃
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V-70oil soluble

  • With highest polymerization activity among azo initiators available in Wako
  • 10 Hour half-life decomposition temperature: 30℃
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V-40oil soluble

  • Oil-soluble azo initiator having high decomposition temperature
  • 10 Hour half-life decomposition temperature: 88℃
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AIBNoil soluble

  • The most common azo initiator
  • 10 Hour half-life decomposition temperature: 65℃
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V-65oil soluble

  • Employed in various polymerizations for general purposes
  • 10 Hour half-life decomposition temperature: 51℃
  • Oil-soluble azo initiator having low decomposition temperature
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V-59oil soluble

  • Freely soluble in various organic solvents
  • 10 Hour half-life decomposition temperature: 67℃
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VAm-110oil soluble

  • Non-nitrile azo initiator having high decomposition temperature
  • 10 Hour half-life decomposition temperature: 110℃
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VR-110oil soluble

  • Generates polymerization active species consisting only of hydrocarbons
  • 10 Hour half-life decomposition temperature: 110℃(in diphenyl ether)
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VEF-066oil soluble

  • Fluoroalkyl groups can be introduced at the polymer ends
  • 10 Hour half-life decomposition temperature: 66.4℃ (in MEK)
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Macro Azo initiators

VPS-1001N

VPS-1001N includes a polydimethylsiloxane (silicone) unit in the initiator structure. Block copolymers polymerized using VPS-1001N with vinyl monomers can result in desirable polymer features such as heat resistance, water repellency, lubrication, mold releasing, biocompatibility and gas permeability in resin materials blended with other polymers.

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VPE-0201

VPE-0201 includes a polyethyleneglycol (PEG) unit in the initiator structure. Block copolymers radically polymerized using VPE-0201 with vinyl monomers can result in desirable polymer features such as hydrophilicity, dispersibility, antistatic properties and anti-tarnish properties in resin materials blending with other polymers.

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Initiators HP grade (metal management products)

V-65HPoil soluble

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AIBN-HPoil soluble

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V-601HPoil soluble

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