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Merck
CN

435252

Poly(styrene-co-maleic acid), partial isobutyl/methyl mixed ester

average Mv ~180,000, powder

Synonym(s):

maleated copolymer, maleated polymer, maleic copolymer

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About This Item

Linear Formula:
[CH2CH(C6H5)]x[CH(CO2R)CH(CO2R)]y, R = H or CH3 or-CH2CH(CH3)2
CAS Number:
63528-92-7
UNSPSC Code:
12162002
PubChem Substance ID:
24867225
MDL number:
MFCD00217735

Key Documents

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SMILES string

OC(=O)\C=C\C(O)=O.C=Cc1ccccc1.COC(=O)\C=C\C(=O)OC.CC(C)COC(=O)\C=C\C(=O)OCC(C)C

form

powder

mol wt

average Mv ~180,000

viscosity

15-35 cP, 10 %(25 °C, Brookfield, spindle #1) (60 rpm, pH 8.3)(lit.)

acid number

~185 mg KOH/g

transition temp

Tg 140-150 °C, flow temperature 230-235 °C

solubility

aqueous base, alcohols, ketones and ethyl acetate: soluble

density

1.15 g/mL at 25 °C (lit.)

General description

1:<1 mole ratio of styrene:maleic anhydride

Application

Dispersant, emulsifier, binder, sizing agent and viscosity modifier.

Storage Class

13 - Non Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
56897MJV
56897MJ
08225MD
01913HD
07429LI

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