American Polymer Standards Corporation

Providing Molecular Weight Determination Services, Polymer Standards and GPC Columns since 1983

 

American Polymer Standards Corporation is an independent contract laboratory specializing in molecular weight distribution analysis by various determination methods. Methods used are Gel Permeation Chromatography/Size Exclusion Chromatography (GPC/SEC) and Multi-Angle Laser Light Scattering (MALLS). We have extensive experience analyzing such materials as Nylon, Polyethylene Terephthalate, Polyurethane, Polyethylene, Polypropylene, Copolymers, etc...

As an independent laboratory APSC is committed to providing the highest quality characterization of your polymer samples. Our customers can be assured that as a independent laboratory confidentiality is a top priority with us. Expert witness services are also available.

APSC works closely with customers that require method development or that wish to have us perform analysis using the customers own method.

APSC offers a wide variety of organic and aqueous polymer standards. Polymer standards listed on this site are ideally suited for calibrating instruments and determining molecular weights of polymer samples by applications such as GPC/SEC, MALLS, etc. These polymer standards are only offered for research and investigational purposes and are not intended for Food, Drug, Cosmetic or Household use.

AM GPC Gel Columns are available in the solvent of your choice and are offered for a fraction of the price of other column producers. AM GPC Gel Columns are made of highly cross-linked ST-DVB copolymer for use with most organic solvents (e.g. DMF, NMP, DMSO, HFIP, THF, TCB etc...).

APSC offers the service of regenerating your old columns for a fraction of the cost of replacing them. In most cases we can have your columns regenerated and shipped back within 7 business days. Every regenerated column meets or exceeds new column specifications. All columns are shipped in the solvent of your choice.

 

We Accept Visa, MasterCard & American Express

 

 

Conventional GPC Analysis

Information included in final report: Formal report with the Mn, Mw, Mz and MWD relative to available standards, calibration curve, one MWD chromatogram per sample, one DRI chromatogram and one data summary report per sample injection.
Three injections are taken for each sample.

Normal turnaround time is 7 business days from the time we receive the sample.

Express service is available at a 50% surcharge and results available in 48 hours.

Solvent First Sample *Additional Sample(s)
THF $424.00 $363.00
Toluene $545.00 $424.00
Chloroform $545.00 $424.00
Methylene Chloride $545.00 $424.00
Methanol $545.00 $424.00
Water $545.00 $424.00
DMF $665.00 $424.00
DMAC $665.00 $424.00
NMP $665.00 $424.00
DMSO $665.00 $424.00
TCB $787.00 $605.00
HFIP $1,150.00 $787.00

*Additional Sample(s) pricing is for samples received for analysis at the same time and using the same operating conditions.

Recalculation or Additional Calculations of Data: $100.00

Additional Chromatograms; including overlays: $25.00

Any requests for additional information after 2 weeks of receiving the final report will be charged at a rate of $100.00 per hour.

Sample Submission Form

 

 

Multi - Angle Laser Light Scattering (MALLS)

Determining the weight average molecular weight (Mw)of organic and water soluble polymers by MALLS is done by injecting the solution into a chromatography system with a MALLS instrument and a refractometer. The intensity of the scattered light is proportional to the molecular weight. The weight average can be calculated using a known dn.dc value, a specific refractive index increment of the solute-solvent mixture and a known concentration.

Instrumentation: Wyatt Dawn
Molecular Weight Range:

Organic Solvent (Above 10,000 g/mol)
Aqueous Solvent (Above 10,000 g/mol)

Temperature: Room Temperature
Turnaround Time: 7 Business Days from Receipt of sample(s)
Price: $1,815.00 - First Sample
$1,210.00 - *Additional Sample(s)

*Additional Sample(s) pricing based on samples received at the same time using the same operating conditions.

Sample Submission Form

 

AM GPC Gel Columns

For your convenience and to eliminate the costly and time consuming solvent changovers, columns are shipped in the solvent of your choice. Columns are provided in three particle sizes (5, 10 and 15 microns) and can be bought in pore sizes of 100Å, 500Å, 103Å, 104Å, 105Å, 106Å and Linear (mixed bed). Each column is individually tested for efficiency and resolution and is unconditionally guaranteed for 120 days. Please specify the particle size desired (5, 10 or 15 micron) and the solvent you wish the column to be shipped in.

5 micron
Catalog # Pore Size Mw Range Price
AM Gel 100/5 100Å 0 - 700 $968.00
AM Gel 500/5 500Å 0 - 10,000 $968.00
AM Gel 103/5 1,000Å 1,000 - 20,000 $968.00
AM Gel 104/5 10,000Å 10,000 - 200,000 $968.00
AM Gel 105/5 100,000Å 100,000 - 2,000,000 $968.00
AM Gel 106/5 1,000,000Å 500,000 - 10,000,000 $968.00
AM Gel Linear/5 Mixed Bed 1,000 - 5,000,000 $1,089.00

 

10 micron
Catalog # Pore Size Mw Range Price
AM Gel 100/10 100Å 0 - 700 $847.00
AM Gel 500/10 500Å 0 - 10,000 $847.00
AM Gel 103/10 1,000Å 1,000 - 20,000 $847.00
AM Gel 104/10 10,000Å 10,000 - 200,000 $847.00
AM Gel 105/10 100,000Å 100,000 - 2,000,000 $847.00
AM Gel 106/10 1,000,000Å 500,000 - 10,000,000 $847.00
AM Gel Linear/10 Mixed Bed 1,000 - 5,000,000 $968.00

 

15 micron
Catalog # Pore Size Mw Range Price
AM Gel 100/15 100Å 0 - 700 $726.00
AM Gel 500/15 500Å 0 - 10,000 $726.00
AM Gel 103/15 1,000Å 1,000 - 20,000 $726.00
AM Gel 104/15 10,000Å 10,000 - 200,000 $726.00
AM Gel 105/15 100,000Å 100,000 - 2,000,000 $726.00
AM Gel 106/15 1,000,000Å 500,000 - 10,000,000 $726.00
AM Gel Linear/15 Mixed Bed 1,000 - 5,000,000 $847.00

 

Guard Column
Catalog # Price
AM Gel Guard Column $275.00

Guard columns protect the main bank of GPC columns from adverse conditions and are available in all solvents and particle sizes

 

 

GPC Column Regeneration Service

Column Type Price Guarantee
microSTYRAGEL™ (10µ & 15µ column; pore sizes 100Å - 106Å) $363.00 120 Days
microSTYRAGEL™ (10µ & 15µ columns; Mixed Bed) $394.00 120 Days
ULTRASTYRAGEL™ (5µ columns with pore sizes 100Å - 106Å) $484.00 90 Days
ULTRASTYRAGEL™ (5µ columns; Mixed Bed) $515.00 90 Days

Note: Please put end caps on your columns when shipping them for regeneration service. All columns recieved for regeneration service. All columns recieved for regeneration service without end caps will be charged an additional $20.00 per end cap that needs to be provided.

 

Regeneration Procedure
1. GPC column tube and end caps are cleaned.
2. New GPC gel in prepared.
3. Inlet and outlet filters are replaced.
4. Column is repacked using the propietary slurry method.
5. Column is tested for efficiency and performance.
6. Column is shipped in the solvent of your choice.
7. Each column is unconditionally guaranteed.
8. Each column meets or exceeds new column specifications.

 

Organic GPC Standards

Polystyrene Polyethylene Terephthalate
Polymethyl Methacrylate Polybutylene Terephthalate
Polybutadiene Polytetrohydrofuran
Poly(Iso-Butylene) Cellulose Acetate
Polycarbonate Cellulose Triacetate
Polypropylene Glycol Nylon 6
Polyvinyl Acetate Nylon 6/6
Polyvinyl Chloride Polyacrylonitrile
Polyvinyl Butyral Vinylidene Fluoride-hexafluoropropylene
Polydimethylsiloxane Polysulfone
Polypropylene Polylactic Acid
Polyethylene Polyisoprene

 

Aqueous GPC Standards

Polyacrylic Acid - Na Salt Polyvinyl Alcohol
Polymethacrylic Acid - Na Salt Hydroxypropyl Cellulose
Polyacrylamide Hydroxypropyl Methylcellulose
Polyethylene Glycol Carboxymethyl Cellulose - Na Salt
Polyethylene Oxide Poly (2-Vinylpyrlidine)
Polystyrene Sulfonate - Na Salt Polyvinylpyrrolidone
Dextran Poly(allylamine) Hydrochloride
Hydroxyethyl Starch Chitosan
Hydroxyethyl Cellulose Xanthan
Pullulan Guar Gum

 

Mark-Houwink Parameters for Polymers

Polymer Solvent °C a; K (dl/gm)
Amylose DMSO 20°C 0.820; 0.0000397
Amylose Water 20°C 0.680; 0.0001320
Amylose Formamide 20°C 0.670; 0.0002260
Amylose Propionate THF 25°C 0.610; 0.024800
Amylose Acetate THF 25°C 0.700; 0.010800
Amylose Butyrate THF 25°C 0.700; 0.011100
Butyl Rubber THF 25°C 0.750; 0.000085
Bun a-N-rubber Acetone 25°C 0.640; 0.0005000
Bun a-N-rubber Chloroform 25°C 0.680; 0.0005400
Cellulose Acetate DMAc 25°C 0.600; 0.001910
Cellulose Acetate DMSO 25°C 0.610; 0.001710
Cellulose Acetate Water 25°C 0.600; 0.000209
Cellulose Diacetate THF 25°C 0.688; 0.051300
Cellulose Diacetate DMAc 25°C 0.738; 0.000395
Cellulose Diacetate Acetone 25°C 0.616; 0.001330
Cellulose Diacetate TFA 25°C 0.696; 0.000527
Cellulose Triacetate TFA 25°C 0.706; 0.000396
Cellulose Triacetate DMAc 25°C 0.750; 0.000264
Cellulose Triacetate MeHCL2 20°C 0.7004; 0.000247
Cellulose Triacetate Chloroform 30°C 0.900; 0.000450
Cellulose Triacetate o-cresol 30°C 0.900; 0.000615
Cellulose Nitrate THF 25°C 1.000; 0.002500
Cellulose Nitrate Ethyl Acetate 30°C 1.010; 0.000250
Cellulose Tri nitrate THF 25°C 0.830; 0.000321
Dextrans 0.2M NaNO3 45°C 0.5300; 0.0007000
Dextrans 0.1M NaNO3; 0.1% Et. Glycol 30°C 0.4000; 0.0037000
Dextrans 0.1M NaCl 30°C 0.4200; 0.0024300
Dextrans 0.05M Na2SO4 30°C 0.5000; 0.0009000
Dextrans Linear Water 25°C 0.5000; 0.0009780
Dextrans Linear Formamide 25°C 0.4900; 0.0016500
Ethyl Cellulose Acetone 20°C 1.0500; 0.0000151
Ethyl Cellulose Methanol 25°C 0.6500; 0.0005230
Hyaluronic Acid 0.2M NaCl 25°C 0.8160; 0.0002280
Hydroxyethyl Starch 0.05M NaNO3 30°C 0.2890; 0.0063700
Hydroxypropyl Cellulose 0.05M Na2SO4 30°C 1.1160; 0.0000115
Hydroxyethyl Cellulose Water 25°C 0.8700; 0.0000953
Polyaryloxyphosphazene THF 30°C 0.6490; 0.00000119
Polyacetals HFIP/H2O 1/1.7+1% TFA 25°C 0.6900; 0.0008700
Polyacrylic Acid-Na Below Mw = 20,000 0.05M Na2SO4 30°C 0.5000; 0.0017400
Polyacrylic Acid - Na Below Mw = 20,000 0.05M Na2SO4 30°C 0.8600; 0.0000400
Polyacrylic Acid - Na 0.50M NaBr 15°C 0.6200; 0.0005270
Polyacrylic Acid - Na 2.00M NaOH 25°C 0.6400; 0.0004220
Polyacrylic Acid 1,4-dioxane 30°C 0.5000; 0.0007600
Polyacrylamides 0.05M Na2SO4 30°C 0.6600; 0.0003730
Polyacrylamides Water 30°C 0.8000; 0.0000631
Polyacrylamides 0.15M Na2SO4 1%AA 35°C 0.6400; 0.0004159
Polyacrylonitrile DMF 30°C 0.750; 0.000393
Polyacrylonitrile DMF 30°C 0.750; 0.000209
Polyacrylonitrile DMF 20°C 0.780; 0.000177
Polyacrylonitrile DMF 80°C 0.450; 0.012600
Polyacrylonitrile DMAc 35°C 0.767; 0.000275
Polyacrylonitrile DMAc 50°C 0.764; 0.000274
Polyacrylonitrile DMSO 50°C 0.758; 0.000283
Polyacrylonitrile DMSO 140°C 0.750; 0.000209
Polyacrylonitrile Y-butyro lactone 30°C 0.700; 0.000342
PBT Polyester o-CP 25°C 0.915; 0.0000622
Poly 1,4 butadiene THF 25°C 0.440; 0.007600
Poly 1,4 butadiene THF 40°C 0.670; 0.000578
Poly 1,2 butadiene THF 40°C 0.850; 0.0000601
Polybutadiene THF 25°C 0.750; 0.000236
Polybutadiene 57% trans; 36% cis THF 30°C 0.740; 0.000256
Polybutadiene 57% trans; 36% cis Toluene 30°C 0.753; 0.000294
Polybutadiene THF 30°C 0.715; 0.000350
Polybutadiene ODCB 135°C 0.746; 0.000270
Polybutadiene Chloroform 30°C 0.712; 0.000428
Polybutadiene Toluene 30°C 0.714; 0.000364
Polybutadiene 95% cis; 2%-1,2 Toluene 30°C 0.725; 0.000305
Polybutadiene 95% cis; 2%-1,2 Benzene 30°C 0.715; 0.000335
Polybutyl methacrylate Benzene 30°C 0.770; 0.000400
Polyethyl acrylate Benzene 30°C 0.670; 0.002770
Polyethyl acrylate Acetone 30°C 0.660; 0.002000
Polyethyl acrylate Chloroform 30°C 0.680; 0.003140
Polyethyl acrylate EtAcetate 30°C 0.660; 0.002600
Polycarbonate THF 25°C 0.670; 0.000490
Polycarbonate THF 25°C 0.700; 0.000389
Polycarbonate Chloroform 25°C 0.740; 0.000301
Polycarbonate Methylene Chloride 25°C 0.740; 0.000299
Polychloroprene THF 25°C 0.830; 0.0000418
DMS Toluene 30°C 0.7200; 0.0000828
DMS Toluene 35°C 0.7030; 0.0001258
PET Polyester HFIP 25°C 0.750; 0.0039300
PET Polyester o-CP 25°C 0.658; 0.0009631
PET Polyester TFA Acid 30°C 0.680; 0.0004300
Polydimethylsiloxane ODCB 135°C 0.570; 0.0003830
Polydimethylsiloxane Chloroform 30°C 0.770; 0.0000540
Polydimethylsiloxane Toluene 30°C 0.731; 0.0000624
Polyethylene Glycol 0.05M Na2SO4 30°C 0.5700; 0.0010400
Polyethylene TCB 135°C 0.706; 0.000517
Polyethylene LP TCB 135°C 0.640; 0.000954
Polyethylene LP Xylene 105°C 0.725; 0.000510
Polyethylene LP Decalin 135°C 0.700; 0.000620
Polyethylene HP Decalin 70°C 0.738; 0.003873
Polyethylene HP Xylene 75°C 0.630; 0.001350
Polyethylene Oxides 0.05M Na2SO4 30°C 0.6930; 0.0003650
Polyethylene Oxides Acetone 25°C 0.6700; 0.0003200
Polyethylene Oxides Toluene 35°C 0.7000; 0.0001450
Polyethylene Oxides Water 30°C 0.7800; 0.0001250
Polyisoprene THF 25°C 0.735; 0.000177
Polyisoprene Toluene 25°C 0.667; 0.000250
Polyisoprene-cis Toluene 30°C 0.728; 0.000200
Polyisobutylene Toluene 0°C 0.600; 0.000400
Polyisobutylene Toluene 15°C 0.650; 0.000240
Polyisobutylene Toluene 30°C 0.670; 0.000200
Polyisobutylene Toluene 50°C 0.680; 0.000200
Polyisobutylene Toluene 60°C 0.710; 0.000135
Polyisobutylene Toluene 90°C 0.720; 0.000126
Polyisobutylene THF 30°C 0.661; 0.000197
Polyisobutylene Benzene 30°C 0.560; 0.000610
Polyisobutylene Carbon Tet 30°C 0.680; 0.000290
Polyisobutylene Cyclohexane 30°C 0.690; 0.000276
Polymethyl acrylate Acetone 30°C 0.520; 0.000282
Polymethyl acrylate Benzene 30°C 0.798; 0.000036
Polymethyl acrylate Toluene 30°C 0.697; 0.000078
PMMA Low MW THF 25°C 0.406; 0.002110
PMMA Toluene 25°C 0.660; 0.000154
PMMA Toluene 25°C 0.730; 0.000071
PMMA Toluene 25°C 0.710; 0.0000812
PMMA DMF (0.1 LiBr) 50°C 0.642; 0.0002094
PMMA THF 30°C 0.690; 0.000128
PMMA High MW THF 25°C 0.720; 0.000075
PMMA Benzene 30°C 0.760; 0.000940
PMMA atactic Toluene 30°C 0.710; 0.000070
PMMA atactic Benzene 30°C 0.760; 0.000052
PMMA atactic Acetonitrile 30°C 0.500; 0.000393
PMMA atactic Acetone 30°C 0.700; 0.000077
PMMA isotactic Acetone 30°C 0.630; 0.000230
PMMA isotactic Benzene 30°C 0.760; 0.000052
Poly(methacrylic acid) Methanol 26°C 0.510; 0.002420
Poly(methyacrylic acid) 2M NaNO3 25°C 0.650; 0.000449
Polypropylene Glycol THF 30°C 0.585; 0.0006200
Polypropylene TCB 145°C 0.750; 0.0001370
Polypropylene Decalin 135°C 0.770; 0.0001580
Polypropylene TCB 135°C 0.800; 0.0000834
Polypropylene iso TCB 145°C 0.760; 0.0001560
Polypropylene iso TCB 130°C 0.760; 0.0001520
Polypropylene atactic Decalin 135°C 0.770; 0.001580
Polypropylene atactic TCB 130°C 0.730; 0.001960
Polypropylene atactic Toluene 30°C 0.725; 0.000218
Polypropylene atactic Benzene 30°C 0.670; 0.000338
Polypropylene atactic Cyclohexane 30°C 0.760; 0.000209
Polypropylene atactic THF 30°C 0.780; 0.000114
Polypropylene syndiotactic Heptane 30°C 0.710; 0.000312
Polystyrene (linear) THF 25°C 0.706; 0.000160
Polystyrene (linear) THF 25°C 0.700; 0.000160
Polystyrene (linear) Low MW THF 30°C 0.428; 0.001700
Polystyrene anionic THF 30°C 0.712; 0.000128
Polystyrene (linear) Toluene 20°C 0.722; 0.000112
Polystyrene (linear) Toluene 30°C 0.750; 0.000088
Polystyrene (iso) Toluene 30°C 0.725; 0.000110
Polystyrene (linear) Chloroform 30°C 0.760; 0.000720
Polystyrene (linear) Cyclohexane 30°C 0.500; 0.008600
Polystyrene (linear) TCB 140°C 0.653; 0.000232
Polystyrene atactic Benzene 30°C 0.730; 0.000115
Polystyrene atactic Toluene 30°C 0.725; 0.000110
Polystyrene atactic Chloroform 30°C 0.794; 0.000049
Polystyrene atactic Decalin 30°C 0.530; 0.000610
Polystyrene atactic Dichloroethane 30°C 0.740; 0.000084
Polystyrene isotactic Benzene 30°C 0.735; 0.000106
Polystyrene isotactic Chloroform 30°C 0.734; 0.000259
Polystyrene isotactic Toluene 30°C 0.725; 0.000100
Polystyrene (comb) THF 23°C 0.560; 0.000220
Polystyrene (star) THF 23°C 0.740; 0.000035
Poly a-methylstyrene THF 30°C 0.690; 0.000150
Polystyrene Sulfonate 0.05M Na2SO4 30°C 0.7000; 0.0001250
Polystyrene Sulfonate 0.10M NaCl 25°C 0.6800; 0.0001780
Polystyrene Sulfonate 0.05M NaCl 25°C 0.7200; 0.0001390
Polysulfone DMF 80°C 0.532; 0.000820
Pullulans 0.05M Na2SO4 30°C 0.6650; 0.0002010
Natural Rubber THF 25°C 0.7900; 0.0001090
Natural Rubber Benzene 30°C 0.7400; 0.0001850
Nylon 6 90% HCOOH 25°C 0.7000; 0.0014500
Nylon 6 m-cresol 25°C 0.6200; 0.0032000
Nylon 6/6 90% HCOOH 25°C 0.6800; 0.0011000
Nylon 6/6 90% HCOOH 25°C 0.7200; 0.0011000
Nylon 6/6 o-chlorophenol 25°C 0.6200; 0.0016800
Nylon 6/6 m-cresol 25°C 0.6100; 0.0024000
Nylon 12 m-cresol 25°C 0.7400; 0.0008100
Nylon 12 H2SP4 96% 25°C 0.6400; 0.0006940
Polyvinyl Alcohol 100%H 0.1M Na2SO4 35°C 0.5700; 0.0012620
Polyvinyl Alcohol 100%H 0.1M Na2SO4 35°C 0.5670; 0.0013489
Polyvinyl Alcohol 100%H 0.1M Na2SO4 35°C 0.5600; 0.0013710
Polyvinyl Alcohol 100%H 0.1M Na2SO4 35°C 0.5690; 0.0012530
Polyvinyl Alcohol 100%H 0.1M Na2SO4 35°C 0.5170; 0.0020559
Polyvinyl Alcohol 88%H H2O/CH3CN (80/20) 35°C 0.5300; 0.0022909
Polyvinyl Alcohol 88%H H2O/CH3CN (80/20) 35°C 0.5400; 0.0016218
Polyvinyl Alcohol 88%H H2O/CH3CN (80/20) 35°C 0.5200; 0.0021396
Polyvinyl Alcohol 88%H H2O/CH3CN (80/20) 35°C 0.6500; 0.0006456
Polyvinyl Alcohol 98%H 0.05M Na2SO4 30°C 0.5300; 0.0017400
Polyvinyl Alcohol Water 30°C 0.6400; 0.0005430
Polyvinyl Alcohol Water 30°C 0.6400; 0.0006660
Polyvinyl Alcohol Water 80°C 0.5600; 0.0009400
Poly 2-Vinylpyridine 0.1M Na formate 30°C 0.9300; 0.0000250
Poly(vinylpirrolidone) Chloroform 25°C 0.6400; 0.0001940
Poly(vinylpirrolidone) MeOH 30°C 0.6500; 0.0002300
Poly(vinylpirrolidone) MeOH/H2O 1:1 0.1M LiNO3 30°C 0.6500; 0.0001320
Poly(vinylpirrolidone) 0.05M Na2SO4 25°C 0.7480; 0.0001127
Poly(vinylpirrolidone) Water 25°C 0.5500; 0.0005650
Poly(vinylpirrolidone) Water 30°C 0.5900; 0.0003930
PVCl THF 25°C 0.766; 0.000163
PVCl THF 25°C 0.776; 0.000163
PVCl THF 30°C 0.770; 0.000150
PVCl THF 30°C 0.830; 0.000833
PVCl Cyclohexane 25°C 0.780; 0.000138
PVCl Chlorobenzene 30°C 0.590; 0.000712
PVCl Cyclohexane 30°C 0.770; 0.000163
Polyvinyl butyrate Benzene 30°C 0.735; 0.000112
Polyvinyl methyl ether Benzene 30°C 0.600; 0.000760
PVBr THF 25°C 0.640; 0.000159
PVAc Linear THF 25°C 0.700; 0.000160
PVAc Linear THF 25°C 0.791; 0.000051
PVAc Branched THF 30°C 0.630; 0.000350
PVAc Branched Acetone 25°C 0.680; 0.000214
PVAc Branched Acetone 30°C 0.720; 0.000102
PVAc Branched Methanol 25°C 0.590; 0.000380
PVAc Branched Methanol 30°C 0.600; 0.000314
PVAc Branched Toluene 25°C 0.530; 0.001080
PVAc Branched Benzene 30°C 0.620; 0.000563
PVAc Branched Acetonitrile 30°C 0.620; 0.000415
PVAc Branched Ethyl Formate 30°C 0.650; 0.000320
PVAc Branched Chloroform 25°C 0.720; 0.000203
Poly THF Toluene 28°C 0.780; 0.000251
Poly THF Ethyl Acetate 30°C 0.560; 0.000422
SBR (25%S) THF 25°C 0.693; 0.000410
SBR (28% Sytrene) THF 25°C 0.693; 0.000451
SBR, Buna-S, GR-S Toluene 25°C 0.667; 0.000525
SBR, Buna-S, GR-S Toluene 30°C 0.710; 0.000379
SBR, Buna-S, GR-S Cyclohexane 30°C 0.700; 0.000316
SBR, Linear Fract Toluene 30°C 0.740; 0.000214
SBR, Branched Fract Toluene 30°C 0.480; 0.005350
Xanthan 0.1M NaCl 25°C 1.140; 0.0000017
Xanthan 0.1M NaNO3, 0.1% Et. Glycol 30°C 1.1000; 0.0037024
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American Polymer Standards Corporation * 8680 Tyler Blvd. * Mentor, OH 44060 * USA * Phone: 440-255-2211 * Fax: 440-255-8397