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![water soluble](../common/images/product/pro_ico_suiyo.jpg)
VA-086![water soluble](../common/images/product/pro_ico_suiyo.jpg)
CAS RN® : 61551-69-7
- Potential for introducing a hydroxyl into the terminus of polymer
- 10 Hour half-life decomposition temperature: 86℃
![Structural formula of VA-086](../water-soluble-azo-initiators/image/VA-086.png)
V-50![water soluble](../common/images/product/pro_ico_suiyo.jpg)
CAS RN® : 2997-92-4
- Used for superabsorbent polymer and flocculants
- 10 Hour half-life decomposition temperature: 56℃(in water)
![Structural formula of V-50](../water-soluble-azo-initiators/image/V-50.png)
VA-044![water soluble](../common/images/product/pro_ico_suiyo.jpg)
CAS RN® : 27776-21-2
- Non-nitrile water-soluble azo initiator having low decomposition temperature
- 10 Hour half-life decomposition temperature: 44℃(in water)
![Structural formula of VA-044](../water-soluble-azo-initiators/image/VA-044.png)
V-501![water soluble](../common/images/product/pro_ico_suiyo.jpg)
CAS RN® : 2638-94-0
- Non-halogen water-soluble azo initiator
- 10 Hour half-life decomposition temperature: 63℃ (DMF)
![Structural formula of V-501](../water-soluble-azo-initiators/image/V-501.png)
VA-057![water soluble](../common/images/product/pro_ico_suiyo.jpg)
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℃
![Structural formula of VA-057](../water-soluble-azo-initiators/image/VA-057.png)
Oil soluble Azo intiators![oil soluble](../common/images/product/pro_ico_yuyou.jpg)
V-601![oil soluble](../common/images/product/pro_ico_yuyou.jpg)
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℃
![Structural formula of V-601](../oil-soluble-azo-initiators/image/V-601.png)
V-70![oil soluble](../common/images/product/pro_ico_yuyou.jpg)
CAS RN® : 15545-97-8
- With highest polymerization activity among azo initiators available in Wako
- 10 Hour half-life decomposition temperature: 30℃
![Structural formula of V-70](../oil-soluble-azo-initiators/image/V-70.png)
V-40![oil soluble](../common/images/product/pro_ico_yuyou.jpg)
CAS RN® : 2094-98-6
- Oil-soluble azo initiator having high decomposition temperature
- 10 Hour half-life decomposition temperature: 88℃
![Structural formula of V-40](../oil-soluble-azo-initiators/image/V-40.png)
AIBN![oil soluble](../common/images/product/pro_ico_yuyou.jpg)
CAS RN® : 78-67-1
- The most common azo initiator
- 10 Hour half-life decomposition temperature: 65℃
![Structural formula of AIBN](../oil-soluble-azo-initiators/image/AIBN.png)
V-65![oil soluble](../common/images/product/pro_ico_yuyou.jpg)
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
![Structural formula of V-65](../oil-soluble-azo-initiators/image/V-65.png)
V-59![oil soluble](../common/images/product/pro_ico_yuyou.jpg)
CAS RN® : 13472-08-7
- Freely soluble in various organic solvents
- 10 Hour half-life decomposition temperature: 68℃
![Structural formula of V-59](../oil-soluble-azo-initiators/image/V-59.png)
VAm-110![oil soluble](../common/images/product/pro_ico_yuyou.jpg)
CAS RN® : 195520-32-2
- Non-nitrile azo initiator having high decomposition temperature
- 10 Hour half-life decomposition temperature: 110℃
![Structural formula of VAm-110](../oil-soluble-azo-initiators/image/VAm-110.png)
VR-110![oil soluble](../common/images/product/pro_ico_yuyou.jpg)
CAS RN® : 39198-34-0
- Generates polymerization active species consisting only of hydrocarbons
- 10 Hour half-life decomposition temperature: 110℃(in diphenyl ether)
![Structural formula of VR-110](../oil-soluble-azo-initiators/image/VR-110.png)
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.
![Structural formula of VPS-1001N](../macro-azo-initiators/image/VPS-1001N.png)
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.
![Structural formula of VPE-0201](../macro-azo-initiators/image/VPE-0201.png)