Your Professional Molecular Weight Regulator Supplier
Niujiao Chemical specializes in supplying a variety of chemical products, focusing on the research and development, production and trade of various chemical raw materials and products, relying on superior product quality exported to more than countries and regions.The product series mainly includes rubber accelerators, rubber antioxidants, rubber curing agents, water treatment additives, carbon black environment-friendly gold extraction agents and other categories.
Why Choose Us
Broad Market
The Our products are exported to more than 100 countries and regions such as the United States, the United Kingdom, France, Japan, Russia, South America, Southeast Asia and Africa.
Custom Service
We understand that each customer may have unique requirements. We have the flexibility to customize our rubber additives to meet specific formulation needs, ensuring optimal compatibility and performance in various rubber applications.
High-Quality Manufacturing
Our manufacturing facilities employ advanced technologies and adhere to stringent quality control measures. We prioritize quality in every step of the production process, ensuring consistent and high-performance rubber additives that meet international standards.
Wide Range of Applications
Our products are widely used is widely used in rubber, leather, cable, plastic, pharmaceutical, water treatment and other industries.
Product Description
|
Product Name |
Indole-3-butyric acid IBA 98% |
|
CAS NO. |
133-32-4 |
|
Classification |
Plant growth regulator/Auxin/Agrochemical |
|
Specification |
98%TC |
|
Chemical Name |
Indole butyric acid; Indole-3-butyric acid |
|
Appearance |
Light yellow or pale red crystal powder |
|
Molecular Formula |
C12H13NO2 |
|
Molecular Weight |
202.2371 |
|
Melting Point |
121～124℃ |
|
Solubility |
Water 250mg/L (20℃); benzene>1000g/L, acetone, ethanol, ether 30~100g/L, chloroform 0.01~0.1g/L. |
|
Stability |
Very stable in neutral, acidic and alkaline media. |
|
Toxicity |
Acute toxicity: LD50: 3160 mg/kg (rat oral); >5000mg/kg (rat dermal). |
|
Storage |
Avoid direct light |
Precise Control of Molecular Weight: They allow precise control over the polymer chain length during polymerization.
Tailoring Polymer Properties: By controlling molecular weight, manufacturers can tailor the properties of polymers to meet specific needs.
Mechanical Properties: Higher molecular weight polymers are generally stronger and tougher due to chain entanglement. Conversely, lower molecular weight polymers tend to be more brittle but easier to process.
Thermal Properties: Molecular weight influences the melting point and glass transition temperature of polymers. Higher molecular weight generally leads to higher melting points.
Optimizing Product Performance: Molecular weight regulators enable the creation of polymers with properties optimized for diverse applications.
Specification
|
Product name |
Sodium citrate |
|
Melting point |
300°C |
|
Density |
1.008 g/mL at 20 °C |
|
Color |
White |
|
SOLUBLE |
Soluble in water |
|
Form |
Powder |
Indole-3-butyric acid stimulates cell division and tissue differentiation, induces parthenocarpy, and forms seedless fruits; induces the production of adventitious roots and promotes the rooting of cuttings.
● Indole-3-butyric acid can act on all vigorously growing parts of the plant, such as roots, buds, and fruits. It will strongly show cell division in the specifically treated parts and promote growth.
● Indole-3-butyric acid has the characteristics of long-lasting effect and specificity.
● Indole-3-butyric acid can promote the growth of new roots, induce the formation of root bodies, and promote the formation of adventitious roots in cuttings.
Molecular Weight Regulator - Uses and synthesis methods
One of the characteristics of the addition polymerization reaction, especially the free radical polymerization reaction, is that it is prone to chain transfer reaction. The chain transfer reaction can cause the branching of polymers. For example, the free radical polymerization reaction of polyethylene causes molecular branching due to chain transfer, and the crystallinity is reduced. If the molecules are not arranged tightly, low-density polyethylene is obtained, and the coordination polymerization has no chain transfer reaction. High-density polyethylene without bran, however, the physical and mechanical properties are very different, which is one of the important contents of the chain structure in polymer physics.
On the other hand, the function of the chain transfer reaction is to reduce the average molecular weight of the polymer. Therefore, the purpose of controlling the molecular weight of free radical polymers can be achieved by adding compounds that are prone to chain transfer reactions. This is the molecular weight regulator, also known as Chain transfer agent, the two are universal. This is a very clear concept in polymer chemistry, and there are also very clear definitions in all polymer chemistry textbooks.
The substances commonly used as molecular weight regulators are mercaptan organics that are prone to chain transfer reactions, such as dodecyl mercaptan, mercaptoacetate, etc. Due to the unpleasant odor and toxicity of mercaptan, in recent years, people have developed various alternative high-efficiency molecular weight regulators for mercaptan, such as α-methylstyrene linear dimer, etc.
Preparation the steps for preparing the molecular weight regulator are as follows: 0.1g tetraethyl thiuram disulfide, 0.1g tetrapropyl thiuram disulfide, 0.2g tetrabutyl thiuram disulfide, 0.2g tetraisobutyl thiuram disulfide and 0.2g tetrapentyl thiuram disulfide are mixed to prepare the molecular weight regulator.
Transportation
FAQ
We're professional molecular weight regulator manufacturers in China, specialized in providing high quality products and service. We warmly welcome you to buy cheap molecular weight regulator from our factory. For quotation and free sample, contact us now.
Antioxidant MBZ, Diisobutylthiuram disulfide, 1 3 Diphenyl 2 thiourea