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Merck
CN

444790

Poly(tert-butyl acrylate-co-ethyl acrylate-co-methacrylic acid)

powder, methacrylic acid 23

Synonym(s):

Ethyl acrylate-methacrylic acid-tert -butyl acrylate copolymer

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About This Item

Linear Formula:
[CH2CH[CO2C(CH3)3]3]x[CH2CH(CO2C2H5)]y[CH2C(CH3)(CO2H)]Z
CAS Number:
159666-35-0
UNSPSC Code:
12162002
PubChem Substance ID:
24868146
NACRES:
NA.23
MDL number:
MFCD00241441

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InChI

1S/C7H12O2.C5H8O2.C4H6O2/c1-5-6(8)9-7(2,3)4;1-3-5(6)7-4-2;1-2-3-4(5)6/h5H,1H2,2-4H3;3H,1,4H2,2H3;2-3H,1H3,(H,5,6)/b;;3-2+

InChI key

SXLHETAPSDIGDP-CITOEQSFSA-N

SMILES string

C\C=C\C(O)=O.CCOC(=O)C=C.CC(C)(C)OC(=O)C=C

description

K-value 34 - 40 DIN 53 726

form

powder

feed ratio

methacrylic acid 23

acid number

140‑160 mg KOH/g

transition temp

Tg 75 °C

solubility

water and ethanol: soluble in salt form

density

0.4 g/mL at 25 °C (lit.)

Quality Level

100

Related Categories

General description

Film forming thermoplastic.
Poly(tert-butyl acrylate-co-ethyl acrylate-co-methacrylic acid) (PTBEM) is an amphiphilic block copolymer.

Application

Hair care products.
PTBEM can be used to prepare a site specific polymeric drug delivery system for prednisone, a steroidal anti-inflammatory drug.

Storage Class

10 - Combustible liquids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCF2238
91196MJV
91196MJ
14621EO
02102HN

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pH-Responsive composite based on prednisone-block copolymer micelle intercalated inorganic layered matrix: Structure and in vitro drug release.
Li Y, et al.
Chemical Engineering Journal, 151(1-3), 359-366 (2009)

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