competitive price BISPHENOL A DIGLYCIDYL ETHER RESIN 25068-38-6

Min.Order / FOB Price:Get Latest Price

1 Kilogram	Negotiable

1 Kilogram

Negotiable

Min.Order :1 Kilogram
Purity: 98%-99.9%
Payment Terms : T/T,Other

Keywords

BISPHENOL A DIGLYCIDYL ETHER RESIN 25068-38-6 C15H16O2

Quick Details

Appearance:detailed see specifications
Application:Used in Synthesis, Pharmaceuticals
PackAge:as customer's request
ProductionCapacity:1|Kilogram|Day
Storage:Store in dry, dark and ventilated place
Transportation:By sea/car

Superiority:

Henan CoreyChem Co., Ltd, based on the original Zhengzhou Cote Chemical Research Institute, be brave in absorbing highly educated talents & overseas returnees; actively responded to Zhengzhou City High-tech Zone Government’s Special Care Policy, reorganized and founded in National University of Science and Technology Park, which is a high-tech, stock enterprise of high-end chemical Custom synthesis;The park was created by the People's Government of Henan Province, and proved by Ministry of Education and the National Science & Technology, taking the construction mode of "many college a park, and common development", mainly depends on Zhengzhou University and Henan University’s scientific research and talent advantage to set up Universities, scientific research institute and enterprise scientific research achievements transformation platform, to make high-tech enterprises incubate, is the new high-tech talent gathering base, high and new technology industry enterprise radiation base, colleges and universities technological innovation base.

Henan Coreychem Co., Ltd, facing global High-tech pharmaceutical raw materials, high complex new type intermediates, fine chemicals custom synthesis, scale-up production and Rare chemicals trade. Corey have well-equipped machine, strong technical force and considerate marketing team service. We also have rich experience advantage in basic research, small scale process development, scale-up, industrial technology development & production and cost control.

Our R&D center building area is 811 square meters, with 3 contributing proffesor of technical advisor, 4 Dr., 10 masters, and 28 research staff. Our level of chemical synthesis is known to the industry. So we have accumulated rich experience in synthetic methods design and exploring the synthesis of new technology. Not only we are good in heterocyclic chemistry, chiral chemistry (asymmetric synthesis and enzyme reactions), metal organic synthesis, high throughput chemistry, also specializes in bioorganic chemistry, including nucleosides, nucleotides, sugar chemistry, peptide chemistry. R & D center has many sets of 10 liters, 20 liters, 50 liters, 100L multifunction high and low pressure reaction still, rotary evaporator, anhydrous anaerobic reaction devices, hydrogenation equipment, cryogenic process (-120 degrees) equipment, to complete mg level custom synthesis and kg level process development experiments. The Existing 600M NMR, LCMS, Fourier Infrared Spectrometer, liquid chromatography, differentialscanning calorimetry, and other advanced detection equipment areto ensure quality and efficient completion of R&D projects. So far our completed custom synthesis products is more than 5300 species, where dozens of them are non-CAS declaration products, almost including all types of organic reactions.

At present, in addition to our headquarters in Zhengzhou, we also have another product base in Jun County, Henan Province. This base is the attracting investment of science and technology project of Jun County govenment’s, which covers 6529 square meters. In addition to bear our own company’s 1000L-5000L pilot task, also bear the function of Henan pilot incubation service platform, In order to improve Henan and surroundings’ synthetic reaction pilot service ability and the key technology development capabilities. Base with three GMP standards workshop, a testing center, one test center,one experiment center and associatd supporting facilities, can carry out oxidation, hydrogenation (70 kg pressure), halogenated, acieration, etherification, condensation, cyclization, formatting, ammoniated, diazotization andpilot service such as azide reactions etc. In the future we will work hard to make it become the most complete production system in central China and even the whole country, the highest technical level, the strongest talent team, the most popular service scope of pilot incubation service platform.

Henan Coreychem co., LTD. is committed to provide cost effective chemical service to the global fine chemical industry product development agencies; we adhering to the consistent good commercial reputation, to create a highly efficient, high quality of chemical research, development, production, sales and service of integrated platform, let our customers faster, better get ideal and thoughtful service.

Coreychem

Henan CoreyChem Co., Ltd, facing global High-tech pharmaceutical raw materials, high value-added new type intermediates, fine chemicals custom synthesis, scale-up production and Rare chemicals trade.

Innovative

Henan Coreychem is committed to continuously explore new compound synthesis technology in recent years,we were on enzyme catalysis, catalytic metal complexes in the total synthesis was tested and achieved good results: S.lycopersicum (+) - Aszonalenin (+) - Citrinadin B Total Synthesis of ( − )-Brevicompanine B by Ir-Catalyzed Total Synthesis of (+)-Citrinadin B

servers

Intermediates

Electronic chemicals

Details:

BISPHENOL A DIGLYCIDYL ETHER RESIN Basic information

Introduction Preparation

Product Name:	BISPHENOL A DIGLYCIDYL ETHER RESIN
Synonyms:	(Chloromethyl)oxirane,4,4’-(1-methylethylidene)bisphenolcopolymer;2,2’-[(1-methylethylidene)bis(4,1-phenyleneoxymethylene)]bis[oxirane],homopoly;4,1-phenyleneoxymethylene)]bis[oxirane];4,4’-(1-methylethylidene)bisphenol,-,polymerwith2,2’-[(1-methylethylidene);4,4’-(1-methylethylidene)bis-phenopolymerwith(chloromethyl)oxirane;4,4’-(1-methylthylidene)bisphenol,polymerwith2,2’-[(1-methylethylidene)bis(;XB 3585 ES RESIN;4’-(1-methylethylidene)bisphenol,-polymerwith(chloromethyl)oxirane
CAS:	25068-38-6
MF:	C15H16O2
MW:	228.28634
EINECS:	500-033-5
Product Categories:	-;Dyestuff Intermediates;Polymers;A;Stains and Dyes;Stains&Dyes, A to
Mol File:	25068-38-6.mol

BISPHENOL A DIGLYCIDYL ETHER RESIN Chemical Properties

density	1.18
Fp	78 °C
form	pellets
color	Gardner: ≤3

Safety Information

Hazard Codes	Xi,N,Xn,T
Risk Statements	36/38-43-51/53-42/43-63-62-36/37-20/21/22-45-23/24/25
Safety Statements	28-37/39-61-36-26-23-45-36/37-53
RIDADR	UN 3082 9/PG 3
WGK Germany	2
RTECS	KC2100000

MSDS Information

BISPHENOL A DIGLYCIDYL ETHER RESIN Usage And Synthesis

Introduction

Bisphenol A diglycidyl ether (DGEBA) is a pale yellow liquid epoxy compound formed by the polycondensation of epichlorohydrin (ECH) and bisphenol A (BPA). Bisphenol A diglycidyl ether (DGEBA) can be called a small-molecule adhesive. Epoxy groups located at both ends of the molecule can undergo reactions of ring-opening, cross-linking and solidity with amines, anhydrides, and other curing agents of epoxy resins. Therefore, they are effective adhesion for most substrates such as glass, ceramics, silicon wafers, and polymer materials. It is the lowest molecular weight epoxy resins, and also used as the packaging material for coatings, adhesives, insulating paints, semiconductors, and integrated circuits and other electronic components. In recent years, DGEBA has been used for the inner coating of packaging materials such as canned food.

Preparation

Add bisphenol A and epichlorohydrin in the amount of 1:4 into a three-necked flask equipped with a reflux device, place it in a constant-temperature oil bath, melt it with 70 °C of heat, and dropwise 28.57% aqueous sodium hydroxide solution with a dropping funnel, in which the ratio of the amount of sodium hydroxide and bisphenol A is 4:1. When dropping is completed within half an hour, heat it for 12-24 hours under temperature 70-80°C。 Stop the heating after bisphenol A is completely disappeared validated by TLC method. Cool the mixture to room temperature; add extractant toluene/water (volume ratio 2:1) and stir it at room temperature for half an hour. Transfer to a pear-shaped separatory funnel to separate the liquid, continue washing and separating with deionized water until the solution turns to neutral from alkaline. Distillation and vacuum distillation are used to remove toluene and unreacted epichlorohydrin, respectively. Use a solvent mixture of petroleum ether and ethyl acetate (volume ratio 3:1) a developing solvent to purify it by column chromatography according to the above procedure to obtain DGEBA.

This process, also known as a one-step process, is commonly used for the preparation of low and medium molecular weight bisphenol A epoxy resins.
When the low-molecular-weight bisphenol A epoxy resin is continuously reacted with bisphenol A, the obtained bisphenol A epoxy resin has a high polymerization with a relative molecular mass 1400 or more. This is called a two-step method. When the number-average molecular weight is less than 400, the main component is bisphenol A diglycidyl ether (DGEBA, relative molecular weight 340). To fix the amount of fixed bisphenol A and make excess epichlorohydrin can obtain DGEBA. The reaction process is as follows:

As can be seen from above, the product is bisphenol A diglycidyl ether when there is sufficient epichlorohydrin and enough sodium hydroxide as the catalyst. Excessive amounts of bisphenol A generate linear high molecular compounds with hydroxyl-, etherand epoxy-terminated groups. The internal rotation function of the ether bond increases the flexibility of the molecule, and the hydroxyl group enhances the chemical reactivity and the bonding ability, the epoxy group cross-links molecules into a three-dimensional network structure by reacting with a curing agent. The performance represented by each part of the Bisphenol A-type epoxy resin is shown here:

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