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531278

Sigma-Aldrich

Poly(isobutylene-alt-maleic anhydride)

average Mw ~6,000, 12-200 mesh (85%)

Synonym(s):

maleated copolymer, maleated polymer, maleic copolymer

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About This Item

Linear Formula:
(C4H2O3 · C4H8)X
CAS Number:
26426-80-2
MDL number:
MFCD00677745
UNSPSC Code:
12162002
NACRES:
NA.23
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mol wt

average Mw ~6,000

Quality Level

100

particle size

12-200 mesh (85%)

inherent viscosity

0.45±0.05 dL/g, in DMF(30 °C)(lit.)

transition temp

Tg (DSC) 141 °C (onset)

solubility

aqueous base: soluble

density

1.3 g/mL at 25 °C (lit.)

SMILES string

O1C(=O)C=CC1=O.CC(=C)C

InChI

1S/C4H2O3.C4H8/c5-3-1-2-4(6)7-3;1-4(2)3/h1-2H;1H2,2-3H3

InChI key

RPOCFUQMSVZQLH-UHFFFAOYSA-N

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Application

Poly(isobutylene-alt-maleic anhydride) was used to prepare amphiphilic polymer with dodecylamine.[1] The polymer is a dispersing and surface active agent.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCV5930
MKCT4211
MKCT4128
MKCQ6032
MKCN4995

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Relaxation times of colloidal iron platinum in polymer matrixes.
Morales MP, et al.
Journal of Materials Chemistry, 19(35), 6381-6386 (2009)
Divakara S S M Uppu et al.
Biomacromolecules, 17(3), 862-873 (2016-02-04)
Synthetic polymers incorporating the cationic charge and hydrophobicity to mimic the function of antimicrobial peptides (AMPs) have been developed. These cationic-amphiphilic polymers bind to bacterial membranes that generally contain negatively charged phospholipids and cause membrane disintegration resulting in cell death;
Delivering the goods.
Stefaan De Smedt et al.
Dalton transactions (Cambridge, England : 2003), (11)(11), C23-C23 (2007-04-13)
Alexandre Drogoz et al.
Biomacromolecules, 9(2), 583-591 (2008-01-23)
This work reports on the interactions of a model protein (p24, the capside protein of HIV-1 virus) with colloids obtained from polyelectrolyte complexes (PECs) involving two polysaccharides: chitosan and dextran sulfate (DS). The PECs were elaborated by a one-shot addition
Min Huang et al.
Journal of pharmaceutical sciences, 98(1), 268-280 (2008-04-22)
The therapeutic value of many growth factors is often hindered by the narrow therapeutic index and sustained concentrations required for efficacy. Controlled release approaches provide a valuable tool to achieve these goals; however, growth factor stability must be maintained. Repifermin
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Questions

1–2 of 2 Questions  

  1. WHAT IS THE PURITY OF THIS PRODUCT?

    1 answer

    1. The purity of this product is not a test specification for this product.

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  2. At what rate is isobutylene and maleic anhydride alternated?

    1 answer

    1. Isobutylene and maleic anhydride are alternated in a 1:1 pattern to form poly(isobutylene-alt-maleic anhydride) in Product 531278. This is represented by the linear formula (C4H2O3 · C4H8)x, where x is the number of repeated subunits in the polymer.

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