Polymers Division - Research Facilities - The MALDI Synthetic Polymer Project

Molecular Mass Standards

These polymers have wide application in the calibration of instruments used in polymer characterization and are useful in studies of dilute solution behavior and polymer physics.

SRM	Material	Number average (g/mol)	Weight average (g/mol)	Limiting viscosity number (mL/g)
705a	Polystyrene, narrow molecular mass	171,000	179,000	74 (@ 25ºC in benzene)
706	Polystyrene, broad molecular mass	---	258,000	94 (@ 25ºC in benzene)
1475a	Polyethylene, linear whole polymer	18,000	52,000	101 (@ 130ºC in 1,2,4,- trichlorobenzene)
1478	Polystyrene, narrow molecular mass	35,800	37,000	23 (@ 25ºC in toluene)
1479	Polystyrene, narrow molecular mass	---	1,050,000	---
1480	Polyurethane, low molecular mass	---	47,300	43.8 (@ 30ºC in tetrahydrofuran)
1482	Polyethylene, linear	11,400	13,600	40 (@ 130ºC in 1,2,4,- trichlorobenzene)
1483	Polyethylene, linear	28,900	32,000	79 (@ 130ºC in 1,2,4,- trichlorobenzene)
1484a	Polyethylene, linear	100,000	120,000	198 (@ 130ºC in 1,2,4,- trichlorobenzene)
1487	Poly(methyl- methacrylate)	---	6,000	7.9 (@ 25ºC in tetrahydrofuran)
1488	Poly(methyl- methacrylate)	30,000	---	15.8(@ 25ºC in toluene)
1489	Poly(methyl- methacrylate)	115,000	---	37.4(@ 25ºC in toluene)
1923	Poly(ethylene oxide)	---	26,900	---
1924	Poly(ethylene oxide)	---	120,900	---
2885	Polyethylene, linear	---	6,280	22.3 (@ 130ºC in 1,2,4,- trichlorobenzene)
2886	Polyethylene, linear	---	87,000	157.8 (@ 130ºC in 1,2,4,- trichlorobenzene)
2887	Polyethylene, linear	---	196,400	276.9 (@ 130ºC in 1,2,4,- trichlorobenzene)
2888	Polystyrene	---	7,190	-

Standard Reference Materials may be ordered from the Standard Reference Materials Program Office at NIST.

A Standard Reference Materials catalog may be viewed here.

NIST Materials Science & Engineering Laboratory - Polymers Division


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