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387932

Sigma-Aldrich

聚醋酸乙烯酯

average Mw ~500,000 by GPC

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500 G


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500 G

About This Item

線性公式:
[CH2CH(O2CCH3)]n
CAS號碼:
MDL號碼:
分類程式碼代碼:
12162002
PubChem物質ID:
NACRES:
NA.23


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形狀

beads

品質等級

分子量

average Mw ~500,000 by GPC

儲存溫度

2-8°C

SMILES 字串

COC(=O)C=C

InChI

1S/C4H6O2/c1-3-6-4(2)5/h3H,1H2,2H3

InChI 密鑰

XTXRWKRVRITETP-UHFFFAOYSA-N

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儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

nwg

閃點(°F)

Not applicable

閃點(°C)

Not applicable


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分析證明 (COA)

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Priscileila Colerato Ferrari et al.
Carbohydrate polymers, 91(1), 244-252 (2012-10-10)
In this work pellets containing chitosan for colonic drug delivery were developed. The influence of the polysaccharide in the pellets was evaluated by swelling, drug dissolution and intestinal permeation studies. Drug-loaded pellets containing chitosan as swellable polymer were coated with
Dae Woo Kim et al.
American journal of rhinology & allergy, 26(5), e147-e149 (2012-11-22)
This study investigated the efficacy of glove finger-coated polyvinyl acetate (PA) pack on hemostasis, pain levels, and wound healing after endoscopic sinus surgery (ESS). A prospective, randomized, double-blinded controlled study was performed in 30 patients who underwent bilateral ESS for
Seon Tae Kim et al.
International journal of pediatric otorhinolaryngology, 77(1), 113-116 (2012-11-08)
The purpose of this prospective study was to determine the effectiveness of polyurethane foam (PUF) and polyvinyl acetate (PA) as packing materials for reducing post-conchotomy bleeding, pain, and headaches. This study was a prospective, randomized and single-blinded controlled study. Fifty-two
V Andonova et al.
Die Pharmazie, 67(7), 601-604 (2012-08-15)
During the last decade the number of investigations on the preparation and application of more effective drug release systems on the basis of nanocarriers from biocompatible and biodegradable polymers are considerably increasing. This is notably in force for practically water
Il Gyu Kang et al.
American journal of rhinology & allergy, 24(5), 392-395 (2011-01-20)
The aim of this study was to evaluate the effect of repeated expandable polyvinyl acetate (EPA) packing for preventing stenosis of the frontal sinus ostium after patients undergo functional endoscopic sinus surgery (FESS). A nonrandomized, prospective study of 20 patients

Questions

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  1. 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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  2. 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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