scholarly journals Homopolymer and ABC Triblock Copolymer Mixtures for Thermoresponsive Gel Formulations

Gels ◽  
2021 ◽  
Vol 7 (3) ◽  
pp. 116
Author(s):  
Anna P. Constantinou ◽  
Nikitas Provatakis ◽  
Qian Li ◽  
Theoni K. Georgiou
Keyword(s):  
Ethylene Glycol ◽  
Methyl Ether ◽  
Triblock Copolymer ◽  
Cost Effective ◽  
Butyl Methacrylate ◽  
Abc Triblock Copolymer ◽  
Cost Effective Alternative ◽  
Thermoresponsive Gel ◽  
Triblock Terpolymers ◽  
Glycol Methyl Ether

Our group has recently invented a novel series of thermoresponsive ABC triblock terpolymers based on oligo(ethylene glycol) methyl ether methacrylate with average Mn 300 g mol‒1 (OEGMA300, A unit), n-butyl methacrylate (BuMA, B unit) and di(ethylene glycol) methyl ether methacrylate (DEGMA, C unit) with excellent thermogelling properties. In this study, we investigate how the addition of OEGMA300x homopolymers of varying molar mass (MM) affects the gelation characteristics of the best performing ABC triblock terpolymer. Interestingly, the gelation is not disrupted by the addition of the homopolymers, with the gelation temperature (Tgel) remaining stable at around 30 °C, depending on the MM and content in OEGMA300x homopolymer. Moreover, stronger gels are formed when higher MM OEGMA300x homopolymers are added, presumably due to the homopolymer chains acting as bridges between the micelles formed by the triblock terpolymer, thus, favouring gelation. In summary, novel formulations based on mixtures of triblock copolymer and homopolymers are presented, which can provide a cost-effective alternative for use in biomedical applications, compared to the use of the triblock copolymer only.

Magnetite nanoparticles stabilized with polymeric bilayer of poly(ethylene glycol) methyl ether–poly(ɛ-caprolactone) copolymers

Polymer ◽  
2008 ◽  
Vol 49 (18) ◽  
pp. 3950-3956 ◽  
Author(s):  
Siraprapa Meerod ◽  
Gamolwan Tumcharern ◽  
Uthai Wichai ◽  
Metha Rutnakornpituk
Keyword(s):  
Ethylene Glycol ◽  
Methyl Ether ◽  
Magnetite Nanoparticles ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene ◽  
Glycol Methyl Ether

The role of hydrogen bonding in alginate/poly(acrylamide-co-dimethylacrylamide) and alginate/poly(ethylene glycol) methyl ether methacrylate-based tough hybrid hydrogels

RSC Advances ◽  
2015 ◽  
Vol 5 (71) ◽  
pp. 57678-57685 ◽  
Author(s):  
Zhi Wei Low ◽  
Pei Lin Chee ◽  
Dan Kai ◽  
Xian Jun Loh
Keyword(s):  
Hydrogen Bonding ◽  
Elastic Modulus ◽  
Ethylene Glycol ◽  
Methyl Ether ◽  
Poly Ethylene Glycol ◽  
Hybrid Hydrogels ◽  
Poly Ethylene ◽  
Glycol Methyl Ether ◽  
Poly Acrylamide

Hybrid hydrogels, with an elastic modulus and compressive toughness of 350 kPa and 70 J m−3, was synthesized and reported here.

scholarly journals A ring to rule them all: a cyclic ketene acetal comonomer controls the nitroxide-mediated polymerization of methacrylates and confers tunable degradability

2015 ◽  
Vol 51 (64) ◽  
pp. 12847-12850 ◽  
Author(s):  
Vianney Delplace ◽  
Elise Guégain ◽  
Simon Harrisson ◽  
Didier Gigmes ◽  
Yohann Guillaneuf ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Methyl Ether ◽  
Ketene Acetal ◽  
Nitroxide Mediated Polymerization ◽  
Glycol Methyl Ether

2 Methylene-4-phenyl-1,3-dioxolane (MPDL) was used as a controlling comonomer in NMP with oligo(ethylene glycol) methyl ether methacrylate (MeOEGMA) to prepare well-defined and degradable PEG-based P(MeOEGMA-co-MPDL) copolymers.

The Influences of Monomer Structure and Solvent on the Radical Copolymerization of Tertiary Amine and PEGylated Methacrylates

2021 ◽  
Author(s):  
Priscila Quiñonez-Angulo ◽  
Robin Hutchinson ◽  
Angel Licea-Claverie ◽  
Enrique Saldivar ◽  
Ivan Zapata-Gonzalez
Keyword(s):  
Ethylene Glycol ◽  
Methyl Ether ◽  
Tertiary Amine ◽  
Radical Copolymerization ◽  
Poly Ethylene Glycol ◽  
Ethyl Methacrylate ◽  
Monomer Structure ◽  
Poly Ethylene ◽  
Glycol Methyl Ether

Tertiary Amine Methacrylates (TAMAs), such as 2-(N,N-diethylamino)ethyl methacrylate (DEAEMA) and 2-(N,N-dimethylamino)ethyl methacrylate (DMAEMA), and PEGylated (macro)monomers, such as 2-ethoxyethyl methacrylate (EEMA1) and poly(ethylene glycol) methyl ether methacrylates with 9 and...

scholarly journals ffects of Poly{Carboxylate–g–(Ethylene Glycol)Methyl Ether} on the Physical Properties of Cement Paste

2016 ◽  
Vol 7 (1) ◽  
pp. 47 ◽  
Author(s):  
Heon-Young Cho ◽  
Jung-Mok Suh ◽  
Jin-Man Kim
Keyword(s):  
Ethylene Glycol ◽  
Cement Paste ◽  
Methyl Ether ◽  
Optimal Range ◽  
Molecular Weights ◽  
Testing Method ◽  
Super Plasticizer ◽  
Optimum Formulation ◽  
The Relationship ◽  
Glycol Methyl Ether

<p>The comb type poly{carboxylate–g–(ethylene glycol)methyl ether} (P(C–g–E)) copolymers were synthesized at different monomer ratios. The relationship between the synthetic conditions, the molecular weights<br />(Mp, Mn, Mw, Mz and Mw/Mn) and the dispersion ability of these copolymers in cement paste has been established. The molecular weights of P(C–g–E)s were analyzed by GPC. The dispersion abilities and the dispersion stabilities of P(C–g–E)s in cement paste were tested by mini slump testing method. The optimum formulation for P(C–g–E) synthesis was found to be P23MM 17 mol.%: SMS 10 mol.%: MA 8 mol.%: SMA 65 mol.%: APS 0.2 mol.%. The key components in P(C–g–E) synthetic formulation for cement super-plasticizer are SMA and P23MM. The SMA/P23MM in P(C–g–E) synthetic formulation is related to the dispersion ability and stability of P(C–g–E) in cement paste. The SMA/P23MM in P(C–g–E) synthetic formulation also influences the molecular weights and the polydispersity of P(C–g–E). The optimal range of SMA/P23MM in the formulation as a cement superplasticizer is 3.50~5.50. The dispersion ability of cement paste added with the optimum P(C–g–E) is increased more 3 times than those of the others.</p>

Sign in / Sign up

Export Citation Format

Share Document