The Quino Power™ series consists of polyaromatic polymerization inhibitors with a polyaromatic structure. This is a functional polymerization inhibitor with the following unique features that are not seen with conventional monoaromatic compounds like HQ (hydroquinone), MQ (4-methoxyphenol), and TBC (t-butylcatechol), or transition metal salts.

Features

1. Excellent inhibition property under non-oxygen conditions
2. Monophilic:
   Oil-soluble/water-insoluble (easily soluble in hydrophobic organic solvent and insoluble in water)
   (Conventional monoaromatic polymerization inhibitors such as HQ, MQ, and TBC are amphipathic)
   (Tables 2)
3. Excellent heat resistance (high boiling temperature and lower volatility)
   It has higher boiling temperature and lower volatility than monoaromatic polymerization inhibitors. Especially ATR has a lower volatility.
4. Metal-free: No alkaline metals/transition metals are contained.
5. Halogen free: No halogen elements are contained.

Properties/applications of Quino Power™ (Table 1)

Product name	Quino Power™ MNT	Quino Power™ NQI	Quino Power™ LSN	Quino Power™ ATR
Structure
Molecular weight	174.2	158.2	174.2	194.2
Water-solubility
Oil-solubility
Feature/ application	Suitable for acrylate	Suitable for styrene, methyl methacrylate(MMA) and unsaturated polyester	Suitable for vinyl acetate (having low oxidation-reduction potential)	Application for high boiling temperatures Boiling point 320℃ (MQ: 243℃)