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 initiators
VA-086
CAS RN® : 61551-69-7
- Potential for introducing a hydroxyl into the terminus of polymer
- 10 Hour half-life decomposition temperature: 86℃
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V-50
CAS RN® : 2997-92-4
- Used for superabsorbent polymer and flocculants
- 10 Hour half-life decomposition temperature: 56℃(in water)
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VA-044
CAS RN® : 27776-21-2
- Non-nitrile water-soluble azo initiator having low decomposition temperature
- 10 Hour half-life decomposition temperature: 44℃(in water)
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V-501
CAS RN® : 2638-94-0
- Non-halogen water-soluble azo initiator
- 10 Hour half-life decomposition temperature: 63℃ (DMF)
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VA-057
CAS RN® : 1400693-47-1
- 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 intiators
V-601
CAS RN® : 2589-57-3
- 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-70
CAS RN® : 15545-97-8
- With highest polymerization activity among azo initiators available in Wako
- 10 Hour half-life decomposition temperature: 30℃
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V-40
CAS RN® : 2094-98-6
- Oil-soluble azo initiator having high decomposition temperature
- 10 Hour half-life decomposition temperature: 88℃
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AIBN
CAS RN® : 78-67-1
- The most common azo initiator
- 10 Hour half-life decomposition temperature: 65℃
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V-65
CAS RN® : 4419-11-8
- 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-59
CAS RN® : 13472-08-7
- Freely soluble in various organic solvents
- 10 Hour half-life decomposition temperature: 68℃
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VAm-110
CAS RN® : 195520-32-2
- Non-nitrile azo initiator having high decomposition temperature
- 10 Hour half-life decomposition temperature: 110℃
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VR-110
CAS RN® : 39198-34-0
- Generates polymerization active species consisting only of hydrocarbons
- 10 Hour half-life decomposition temperature: 110℃(in diphenyl ether)
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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)
Here, you can calculate the ‘residue rate’, ‘decomposition reaction time’, and ‘temperature during the decomposition reaction’ of azo polymerization initiators.
