CAS 9003-07-0 Polypropylene, melt index 35g/10min

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Polypropylene, melt index 35g/10min

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Catalog Number

ACM9003070-6

CAS Number

9003-07-0

Product Name

Polypropylene, melt index 35g/10min

Structure

Category

Polymers

Description

Polypropylene is a tan to white odorless solid. Less dense than water and insoluble in water. Hence floats on water. (USCG, 1999)

IUPAC Name

12-[(2S,3R)-3-octyloxiran-2-yl]dodecanoic acid

Molecular Weight

354.6g/mol

Molecular Formula

C22H42O3

Canonical SMILES

CCCCCCCCC1C(O1)CCCCCCCCCCCC(=O)O

InChI

InChI=1S/C22H42O3/c1-2-3-4-5-11-14-17-20-21(25-20)18-15-12-9-7-6-8-10-13-16-19-22(23)24/h20-21H,2-19H2,1H3,(H,23,24)/t20-,21+/m1/s1

InChI Key

NSYDMBURIUSUDH-RTWAWAEBSA-N

Density

0.9 at 68 °F (USCG, 1999)

Application

Polypropylene, with a melt index of 35g/10min, serves a critical role in various applications due to its unique properties. This low-density resin strikes an excellent balance of thermal, chemical, and electrical attributes, providing moderate strength that can be significantly enhanced through the use of reinforcing agents like glass fiber. Despite its limited heat resistance, polypropylene can endure environments involving boiling water or steam sterilization. It is notably resistant to chemical attacks and remains stable against aqueous solutions of inorganic salts and mineral acids and bases, even at elevated temperatures. Moreover, it withstands most organic chemicals and has no solvent at room temperature, though it is susceptible to attack by halogens, fuming nitric acid, and certain hydrocarbons at high temperatures. Polypropylene is translucent, capable of undergoing autoclaving, and its properties can be improved through compounding with fillers, blending with synthetic elastomers, or copolymerizing with other monomers. It is used as a modifier for waxes to reduce blocking and abrasion and improves pigment dispersion in films and fibers. The resin is particularly useful as a thermoplastic molding material and in producing thin films that serve as effective alternatives to paper in capacitors, given their ability to minimize electrical loss.

Color/Form

TRANSLUCENT WHITE SOLID

Complexity

316

Covalently-Bonded Unit Count

Exact Mass

354.313395g/mol

Formal Charge

Heavy Atom Count

MeSH Entry Terms

celgard

Monoisotopic Mass

354.313395g/mol

Odor

ODORLESS

Other Experimental

SOLID MATERIAL SOFTENS AT ABOUT 155 °C; KEEPS STRENGTH DOWN TO -100 °C /ISOTACTIC FORM/;SHRINKS IN BOILING TRICHLOROETHYLENE; GOOD RESISTANCE TO ABRASION (PILLING); TENDENCY TO DEVELOP STATIC CHARGES /ISOTACTIC/;DIFFICULT TO DYE, LACKS DYE-ATTRACTING POLAR GROUPS IN STRUCTURE; /ISOTACTIC FORM/;SHOCK RESISTANCE IS INTERMEDIATE BETWEEN THAT OF HIGH-IMPACT POLYSTYRENE & LOW-PRESSURE POLYETHYLENE;HAS HIGH CHEMICAL INERTNESS; PERMEABILITY TO WATER VAPOR IS VERY LOW;LIGHT IN WT, RIGID, SURFACE HARDNESS;MOLECULAR WT OF 40,000 OR MORE; TENSILE STRENGTH 5000 PSI; FLEXURAL STRENGTH 7000 PSI; USABLE UP TO 250 °F;GOOD ELECTRICAL RESISTANCE; LOW WATER ABSORPTION & MOISTURE PERMEABILITY; POOR IMPACT STRENGTH BELOW 15 °F;FAIR ABRASION & GOOD HEAT RESISTANCE IF PROPERLY MODIFIED; CAN BE CHROME-PLATED, INJECTION- & BLOW-MOLDED, & EXTRUDED;MP: 165 °C; DENSITY: 0.90-0.92; RESISANT TO ACID; ATTACKED BY STRONG OXIDIZING AGENTS, EG HYDROGEN PEROXIDE /ISOTACTIC/;DEGRADED BY HEAT & LIGHT UNLESS PROTECTED BY ANTIOXIDANTS; NOT ATTACKED BY FUNGI OR BACTERIA;RESISTS STRONG ACIDS & ALKALIES UP TO 140 °F; BUT IS ATTACKED BY CHLORINE, FUMING NITRIC ACID, & STRONG OXIDIZING AGENTS;HIGH TEMP RESISTANCE;SOLID MATERIAL /ISOTACTIC FORM/;PRACTICALLY INSOL IN COLD ORG SOLVENTS /ISOTACTIC FORM/;SOL IN HOT DECALIN & TETRALIN /ISOTACTIC FORM/;SOL IN BOILING TETRACHLOROETHANE /ISOTACTIC FORM/

Rotatable Bond Count

Stability

POOR RESISTANCE TO SUNLIGHT WHEN UNSTABILIZED /ISOTACTIC FORM/;OXIDIZES IN AIR @ HIGH TEMP

XLogP3

8.3

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