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℃
V-50
CAS RN® : 2997-92-4
- Used for superabsorbent polymer and flocculants
- 10 Hour half-life decomposition temperature: 56℃(in water)
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)
V-501
CAS RN® : 2638-94-0
- Non-halogen water-soluble azo initiator
- 10 Hour half-life decomposition temperature: 63℃ (DMF)
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℃
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℃
V-70
CAS RN® : 15545-97-8
- With highest polymerization activity among azo initiators available in Wako
- 10 Hour half-life decomposition temperature: 30℃
V-40
CAS RN® : 2094-98-6
- Oil-soluble azo initiator having high decomposition temperature
- 10 Hour half-life decomposition temperature: 88℃
AIBN
CAS RN® : 78-67-1
- The most common azo initiator
- 10 Hour half-life decomposition temperature: 65℃
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
V-59
CAS RN® : 13472-08-7
- Freely soluble in various organic solvents
- 10 Hour half-life decomposition temperature: 68℃
VAm-110
CAS RN® : 195520-32-2
- Non-nitrile azo initiator having high decomposition temperature
- 10 Hour half-life decomposition temperature: 110℃
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)
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.
ViewVPE-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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