There is no information on the polydispersity index of this polymer.
180955
Cellulose acetate
average Mn ~30,000 by GPC
Synonym(s):
Acetylcellulose
Sign In to View Organizational & Contract Pricing.
Select a Size
Pricing and availability is not currently available.
About This Item
Skip To
SMILES string
O1[C@H](C(C(C(C1COC(=O)C)OC(=O)C)OC(=O)C)OC(=O)C)O[C@@H]2C(OC(C(C2OC(=O)C)OC(=O)C)OC(=O)C)COC(=O)C
InChI
1S/C28H38O19/c1-11(29)37-9-19-21(39-13(3)31)23(40-14(4)32)26(43-17(7)35)28(46-19)47-22-20(10-38-12(2)30)45-27(44-18(8)36)25(42-16(6)34)24(22)41-15(5)33/h19-28H,9-10H2,1-8H3/t19?,20?,21?,22-,23?,24?,25?,26?,27?,28+/m1/s1
InChI key
WOTQVEKSRLZRSX-OLIDUAMRSA-N
form
powder
mol wt
average Mn ~30,000 by GPC
extent of labeling
39.8 wt. % acetyl
impurities
≤3.0% water
refractive index
n20/D 1.475 (lit.)
density
1.3 g/mL at 25 °C (lit.)
Quality Level
Looking for similar products? Visit Product Comparison Guide
Related Categories
1 of 4
This Item | 419028 | Y0000784 | 1098300 |
|---|---|---|---|
| refractive index n20/D 1.475 (lit.) | refractive index n20/D 1.475 (lit.) | refractive index n20/D 1.475 (lit.) | refractive index n20/D 1.475 (lit.) |
| form powder | form powder | form - | form - |
| density 1.3 g/mL at 25 °C (lit.) | density 1.3 g/mL at 25 °C (lit.) | density 1.3 g/mL at 25 °C (lit.) | density 1.3 g/mL at 25 °C (lit.) |
| mol wt average Mn ~30,000 by GPC | mol wt average Mn ~50,000 by GPC | mol wt - | mol wt - |
| extent of labeling 39.8 wt. % acetyl | extent of labeling 39.7 wt. % acetyl | extent of labeling - | extent of labeling - |
| impurities ≤3.0% water | impurities ≤3.0% water | impurities - | impurities - |
Application
Cellulose acetate was used in the fabrication of gold microelectrode for electrochemical monochloramine measurement.[1] Cellulose acetate based membranes are used in the separations in aqueous systems and in reverse osmosis process.[2] It has been reported to be used to desalinate seawater.[3]Cellulose acetate was used for biosensor encapsulation.[4] It was used in the preparation of cellulose acetate nanofibre felt structure,[5] cellulose acetate fibers.[6]
General description
Cellulose is a naturally occurring biodegradable and biocompatible polymer. Cellulose based polymers find wide variety of applications as base matrix in biopharmaceutical industry. Cellulose acetate is soluble in acetone. Cellulose acetate can be easily electrospun into its nanofibers.[7]
Storage Class
11 - Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
Choose from one of the most recent versions:
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Printed and flexible biosensor for antioxidants using interdigitated ink-jetted electrodes and gravure-deposited active layer
Pavinatto FJ, et al.
Biosensors And Bioelectronics (2014)
Solvent control of cellulose acetate nanofibre felt structure produced by electrospinning
Haas D, et al.
J. Mater. Sci., 45(5), 1299-1306 (2010)
Fabrication and bioseparation studies of adsorptive membranes/felts made from electrospun cellulose acetate nanofibers
Zhang L, et al.
Journal of Membrane Science , 319(1), 176-184 (2008)
Cellulose acetate reverse osmosis membranes: optimization of the composition
Duarte AP, et al.
Journal of Applied Polymer Science, 100(5), 4052-4058 (2006)
Fiber based enzyme-linked immunosorbent assay for C-reactive protein.
Sadir S, et al.
Sensors and Actuators B, Chemical, 205, 50-60 (2014)
-
Is there any data on polydispersity index, polymerization, etc?
1 answer-
Helpful?
-
-
What is the viscosity (in poise) of cellulose acetate with an average molecular weight of ~30,000?"
1 answer-
This product is not formally assayed to determine viscosity. No specific information is available regarding this property.
Helpful?
-
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdfHelpful?
-
-
What is the degree of substitution of this product? In other words, what is the percentage (by number) of hydroxyl groups substituted by acetyl groups?
1 answer-
The specification sheet for this product shows that the percent acetyl by weight is between 39.3 percent and 40.3 percent. That narrow range corresponds to exactly three acetyl groups and three free hydroxyls for the six available hydroxyl groups per disaccharide unit of the cellulose acetate.
https://www.sigmaaldrich.com/specification-sheets/308/124/180955-BULK_______ALDRICH__.pdfHelpful?
-
-
Hi, what is the particle size?
1 answer-
The particle size of this product is not determined.
Helpful?
-
-
How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
Helpful?
-
Active Filters
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
Contact Technical Service