SiloxanesandSilicones,di-Me,3-hydroxypropylMe,ethoxylated
DIMETHYLSILOXANE, ETHYLENE OXIDE BLOCK COPOLYMER
CAS: 68937-54-2
Molecular Formula:
SiloxanesandSilicones,di-Me,3-hydroxypropylMe,ethoxylated - Names and Identifiers
SiloxanesandSilicones,di-Me,3-hydroxypropylMe,ethoxylated - Physico-chemical Properties
| Density | 1.035 g/mL at 25 °C |
| Melting Point | −14 °C |
| Boling Point | >250°C |
| Flash Point | >230 °F |
| Storage Condition | 2-8℃ |
| Refractive Index | 0 |
SiloxanesandSilicones,di-Me,3-hydroxypropylMe,ethoxylated - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
SiloxanesandSilicones,di-Me,3-hydroxypropylMe,ethoxylated - Introduction
DIMETHYLSILOXANE, the ETHYLENE OXIDE BLOCK COPOLYMER (abbreviated as DEX) is a polymer compound. It is synthesized from dimethyl siloxane and polyethylene glycol monomethyl ether by etherification reaction.
DEX has many features, including the following:
1. Adjust viscosity: The viscosity of DEX can be adjusted and has excellent rheological properties.
2. high temperature stability: DEX can still maintain stable chemical and physical properties at high temperature.
3. Highly soluble: DEX has good solubility in water and organic solvents.
4. Biocompatibility: DEX has good biocompatibility and can be used in the fields of medicine and biochemistry.
The main applications of DEX include the following:
1. Cosmetics: DEX is often added to cosmetics as a skin moisturizer and softener.
2. Medical devices: DEX can be used as a lubricant for medical devices and an additive to reduce friction.
3. Drug delivery system: Due to its biocompatibility, DEX can be used in drug release and delivery systems.
4. Sealant and lubricant: DEX can be used as a sealing material and lubricant, with waterproof and wear resistance characteristics.
The method of preparing DEX is mainly through etherification reaction. First, dimethyl siloxane and polyethylene glycol monomethyl ether are mixed in a certain ratio, and then a catalyst is added to the reaction at an appropriate temperature and reaction time. As the reaction proceeds, the etherification reaction will introduce an ether bond into the compound.
Regarding the safety information of DEX, the following points should be noted:
1. Avoid prolonged exposure to high temperature to prevent its decomposition to produce harmful gases.
2. Avoid contact with strong oxidants or strong acids to avoid dangerous reactions.
3. in the use of DEX should pay attention to personal protective measures, such as wearing gloves and protective glasses.
4. DEX should be away from fire and high temperature environment, storage should avoid direct sunlight.
Overall, DEX is a versatile polymer compound that can be used in cosmetics, medical devices, drug delivery systems, and sealants and lubricants. In the process of use, it is necessary to follow the corresponding safety operation specifications.
DEX has many features, including the following:
1. Adjust viscosity: The viscosity of DEX can be adjusted and has excellent rheological properties.
2. high temperature stability: DEX can still maintain stable chemical and physical properties at high temperature.
3. Highly soluble: DEX has good solubility in water and organic solvents.
4. Biocompatibility: DEX has good biocompatibility and can be used in the fields of medicine and biochemistry.
The main applications of DEX include the following:
1. Cosmetics: DEX is often added to cosmetics as a skin moisturizer and softener.
2. Medical devices: DEX can be used as a lubricant for medical devices and an additive to reduce friction.
3. Drug delivery system: Due to its biocompatibility, DEX can be used in drug release and delivery systems.
4. Sealant and lubricant: DEX can be used as a sealing material and lubricant, with waterproof and wear resistance characteristics.
The method of preparing DEX is mainly through etherification reaction. First, dimethyl siloxane and polyethylene glycol monomethyl ether are mixed in a certain ratio, and then a catalyst is added to the reaction at an appropriate temperature and reaction time. As the reaction proceeds, the etherification reaction will introduce an ether bond into the compound.
Regarding the safety information of DEX, the following points should be noted:
1. Avoid prolonged exposure to high temperature to prevent its decomposition to produce harmful gases.
2. Avoid contact with strong oxidants or strong acids to avoid dangerous reactions.
3. in the use of DEX should pay attention to personal protective measures, such as wearing gloves and protective glasses.
4. DEX should be away from fire and high temperature environment, storage should avoid direct sunlight.
Overall, DEX is a versatile polymer compound that can be used in cosmetics, medical devices, drug delivery systems, and sealants and lubricants. In the process of use, it is necessary to follow the corresponding safety operation specifications.
Last Update：2024-04-10 22:41:03
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