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190845

Sigma-Aldrich

Poly(1-vinylpyrrolidone-co-vinyl acetate)

average Mw ~50,000 (GPC vs. poly(ethylene oxide)), powder

Synonym(s):

PVP-VA copolymer

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About This Item

CAS Number:
25086-89-9
MDL number:
MFCD00134018
UNSPSC Code:
12162002
NACRES:
NA.23
Pricing and availability is not currently available.

form

powder

Quality Level

200

mol wt

average Mw ~50,000 (GPC vs. poly(ethylene oxide))

transition temp

Tg 64 °C

density

1.27 g/mL at 25 °C (lit.)

SMILES string

N1(CCCC1=O)C=C.O(C(=O)C)C=C

InChI

1S/C6H9NO.C4H6O2/c1-2-7-5-3-4-6(7)8;1-3-6-4(2)5/h2H,1,3-5H2;3H,1H2,2H3

InChI key

FYUWIEKAVLOHSE-UHFFFAOYSA-N

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Application

Poly(1-vinylpyrrolidone-co-vinyl acetate) can be used as a starting material to prepare a quasi-solid polymer electrolyte (QSPE) for dye-sensitized solar cells.

It can be used to preparepolymer blend membranes for pervaporation separation of ethanol and2-ethylhexanol mixtures.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW1130
MKCV3552
MKCT3620
MKCQ7119
MKCN2113

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Questions

1–3 of 3 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. 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

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. 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/449/386/product-dating-information-mk.pdf

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  3. Is product 190845 a block copolymer or a random copolymer? Additionally, what is the Vinyl Acetate content in the polymer?

    1 answer

    1. This copolymer is a linear, random copolymer produced by the free-radical polymerization of vinyl acetate (VA) to vinylpyrrolidone (VP). The polymer has no free vinyl acetate present, but the ratio of polymer vinylpyrrolidone to polymer vinyl acetate is 6:4.

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