CAS 117440-21-8 Acryloxy Terminated Ethyleneoxide Dimethylsiloxane-Ethyleneoxide Abablock Copolymer,110 - 150 cSt

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Acryloxy Terminated Ethyleneoxide Dimethylsiloxane-Ethyleneoxide Abablock Copolymer,110 - 150 cSt

Catalog Number	ACM117440218-1
Product Name	Acryloxy Terminated Ethyleneoxide Dimethylsiloxane-Ethyleneoxide Abablock Copolymer,110 - 150 cSt
CAS Number	117440-21-8
Synonyms	Acryloxy Terminated Polydimethylsiloxanepoly(Dimethylsiloxane), Hydroxypropyl Terminated, Diether Withpolyethylene Glycol Monoacrylatesiloxanes And Silicones, Dimethyl, 3-Hydroxypropyl Group-Terminated,Diethers Wth Polyethylene Glycol Monoacrylat
Molecular Weight	520.8g/mol
Boiling Point	> 205 °C
Melting Point	< 0 °C
Flash Point	> 110 °C
Appearance	Amber Clear liquid
Complexity	558
Compound Is Canonicalized	Yes
Covalently-Bonded Unit Count	1
Defined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Exact Mass	520.23439796g/mol
Formal Charge	0
Heavy Atom Count	33
Hydrogen Bond Acceptor Count	8
Hydrogen Bond Donor Count	0
Isotope Atom Count	0
Linear Formula	C22H44O8Si3
Monoisotopic Mass	520.23439796g/mol
Refractive Index	1.445
Relative Density	1.03
Rotatable Bond Count	22
Topological Polar Surface Area	89.5Å²
Undefined Atom Stereocenter Count	0
Undefined Bond Stereocenter Count	0
Viscosity Kinematic	110 - 150 cSt
Volatiles	< 3 %

Case Study

Acryloxy Terminated Ethyleneoxide Dimethylsiloxane-Ethyleneoxide Abablock Copolymer For Elastomer Design

Chemical structures and illustrated polymer networks of ECN, pc-IPN, and chemical grafting of efficient hydrogen-bonding units on the ECN (cg-ECN). Red color denotes chemical cross-linkers and yellow denotes physical interactions Zhang, Zhen, et al. Matter 5.1 (2022): 237-252.

Using a model system, cross-linked polydimethylsiloxane (PDMS) networks, we demonstrate two approaches that can transcend the stiffness-ductility trade-off and provide significant improvements in both parameters. This achievement was achieved by introducing rationally arranged hydrogen-bonding units, namely ureidopyrimidone (UPy), which resulted in 158-fold and 3-fold improvements in Young's modulus and elongation, respectively.
Formation of elastic networks PDMS was chosen as the polymer for elastic network formation due to its good chemical stability, safety, and excellent biocompatibility. Aza-Michael addition between (aminopropylmethylsiloxane)-dimethylsiloxane copolymer (AMS-PDMS, with four amines per polymer chain) and acryloxy-terminated ethylene oxide dimethylsiloxane-ethylene oxide ABA block copolymer (AE-PDMS/EO) was employed to create the model ECN.

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