POLY(ALPHA-METHYLSTYRENE)

Base Information

• Chemical Name: POLY(ALPHA-METHYLSTYRENE)
• CAS No.: 25014-31-7
• Deprecated CAS: 2256721-46-5
• Molecular Formula: C₉H₁₀
• Molecular Weight: 118.178
• European Community (EC) Number: 202-705-0,607-482-7
• ICSC Number: 0732
• NSC Number: 9400
• UN Number: 2303
• UNII: D46R9753IK
• DSSTox Substance ID: DTXSID9025661
• Nikkaji Number: J3.582C
• Wikipedia: Alpha-Methylstyrene
• Wikidata: Q414195
• Metabolomics Workbench ID: 123344
• ChEMBL ID: CHEMBL1344773
• Mol file: 25014-31-7.mol

Synonyms:ALPHA-METHYLSTYRENE POLYMER;ALPHA-METHYLSTYRENE HOMOPOLYMER;A-METHYLSTYRENE POLYMER;(1-methylethenyl)-benzenhomopolymer;Benzene,(1-methylethenyl)-,homopolymer;POLY(ALPHA-METHYLSTYRENE);POLY(ALPHA-METHYLSTYRENE) 10’000;POLY(ALPHA-METHYLSTYRENE) 100’000

Chemical Property of POLY(ALPHA-METHYLSTYRENE)

Chemical Property:

• Melting Point: 250-255 °C
• Refractive Index: n20/D 1.61
• Boiling Point: 162.5°Cat760mmHg
• Flash Point: 246 °C
• PSA: 0.00000
• Density: 1.075 g/mL at 25 °C(lit.)
• LogP: 2.71970
• Storage Temp.: 2-8°C
• XLogP3: 3.5
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 1
• Exact Mass: 118.078250319
• Heavy Atom Count: 9
• Complexity: 96.6
• Transport DOT Label: Flammable Liquid

Purity/Quality:

99.0% ^*data from raw suppliers

Poly(α-methylstyrene) analytical standard, for GPC, 10,000 ^*data from reagent suppliers

Safty Information:

• Safety Statements: 24/25

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Plastics & Rubber -> Styrenes
• Canonical SMILES: CC(=C)C1=CC=CC=C1
• Inhalation Risk: A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20 °C; on spraying or dispersing, however, much faster.
• Effects of Short Term Exposure: The substance is irritating to the eyes, skin and respiratory tract. Lachrymation.
• Effects of Long Term Exposure: Repeated or prolonged contact with skin may cause dermatitis.

Technology Process of POLY(ALPHA-METHYLSTYRENE)

There total 518 articles about POLY(ALPHA-METHYLSTYRENE) which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 93.0%

2,3-diphenyl-2-methylpropan-3-one oxime (5682-41-7) → styrene (100-42-5,25038-60-2,25247-68-1,28213-80-1,28325-75-9,79637-11-9,9003-53-6) + benzonitrile (100-47-0) + benzene (71-43-2,26181-88-4,54682-86-9,13967-78-7,174973-66-1) + isopropenylbenzene (98-83-9,6144-04-3,25014-31-7,42612-14-6)

Guidance literature:

at 800 ℃; under 0.001 - 0.01 Torr; approximate contact time: 0.002-0.03 s;

Reference yield: 57.0%

dimethylsulfone (67-71-0) + 1-Phenylethanol (98-85-1,13323-81-4) → hydrogen (1333-74-0) + isopropenylbenzene (98-83-9,6144-04-3,25014-31-7,42612-14-6)

Guidance literature:

With 1,10-Phenanthroline; potassium tert-butylate; iron(II) chloride; In toluene; at 120 ℃; for 8h; Inert atmosphere; Schlenk technique;

DOI:10.1021/acs.joc.0c01173

Reference yield: 46.0%

3,5-diphenyl-3-methyl-1,2-dioxolane (78485-08-2) → styrene (100-42-5,25038-60-2,25247-68-1,28213-80-1,28325-75-9,79637-11-9,9003-53-6) + (±)-1,3-diphenylbut-3-en-1-ol (125315-69-7) + benzaldehyde (100-52-7) + isopropenylbenzene (98-83-9,6144-04-3,25014-31-7,42612-14-6)

Guidance literature:

With triphenylphosphine; In benzene; at 60 ℃; for 8h;

DOI:10.1021/jo961444+

upstream raw materials:

pyridine

cumenyl chloride

Isopropylbenzene

diethyl ether

Downstream raw materials:

3-methyl-4-(1-methyl-1-phenyl-ethyl)-phenol

2,6-dimethyl-4-phenyl-pyrylium; perchlorate

N-(1-methyl-1-phenyl-ethyl)-acrylamide

methyl 2-methyl-5-phenylhex-5-enoate

Refernces

• 1、 Starowieyski et al.. "". . p. C1. Retrieved 1976.
• 2、 Ohkatsu et al.. "-". . p. 3606. Retrieved 1978.
• 3、 Kazakov,Kabal'nova,Khursan,Shereshovets. "Kinetics and mechanism of the reaction of dimethyldioxirane with cumene". . p. 663 - 671. Retrieved 1997.
• 4、 Sket, Boris,Zupan, Marko. "Polymers as Reagents and Catalysts. 12. Side Chain Bromination of Aromatic Molecules with a Bromine Complex of Poly(styrene-co-4-vinylpyridine)". . p. 929 - 931. Retrieved 1986.
• 5、 Julio, Libia L.,Lezama, Jesus,Maldonado, Alexis,Mora, Jose R.,Chuchani, Gabriel. "Kinetics and mechanisms of gas-phase decarbonylation of α-methyl-trans-cinamaldehyde and E-2-methyl-2-pentenal under homogeneous catalysis of hydrogen chloride". . p. 450 - 455. Retrieved 2014.
• 6、 Maslak, Przemyslaw,Asel, Stacey L.. "ESR Investigation of C-C Bond Cleavage in Radical Cations". . p. 8260 - 8261. Retrieved 1988.
• 7、 Klimova,Berestneva, T. Klimova,Mendoza, J. M. Martinez,Stivalet, J. M. Mendez,Toscano,Garcia, M. Martinez. "Fragmentation and 1,2-addition reactions upon action of methyllithium on coupling products of ferrocenecarbaldehyde with dibenzoylmethane". . p. 2299 - 2315. Retrieved 2008.
• 8、 Ashby, E. C.,Smith, R. Scott,Goel, A. B.. "THE ADDITION OF THE NORMANT REAGENT ("CH3MgBr" + CuBr) TO TERMINAL ALKYNES IN THF. CONCERNING THE NATURE OF THE REACTIVE SPECIES IN SOLUTION". . p. C1 - C5. Retrieved 1981.
• 9、 Amaro,A.,Grohmann,K.. "". . p. 3830 - 3831. Retrieved 1975.
• 10、 Szwarc,Asami. "". . p. 2269. Retrieved 1962.