Poly(hydroxyl propyl methacrylate)-b -Poly(oligo ethylene glycol methacrylate) Thermoresponsive Block Copolymers by RAFT Polymerization

2018 ◽  
Vol 219 (12) ◽  
pp. 1800060 ◽  
Author(s):  
Anna Karatza ◽  
Stergios Pispas
Keyword(s):  
Block Copolymers ◽  
Ethylene Glycol ◽  
Raft Polymerization ◽  
Propyl Methacrylate ◽  
Glycol Methacrylate

scholarly journals Synthesis and surface characterization of well-defined amphiphilic block copolymers composed of polydimethylsiloxane and poly[oligo(ethylene glycol) methacrylate]

RSC Advances ◽  
2017 ◽  
Vol 7 (41) ◽  
pp. 25199-25207 ◽  
Author(s):  
Raita Goseki ◽  
Ling Hong ◽  
Manabu Inutsuka ◽  
Hideaki Yokoyama ◽  
Kohzo Ito ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Ethylene Glycol ◽  
Methyl Ether ◽  
Surface Characterization ◽  
Diblock Copolymers ◽  
Amphiphilic Block Copolymers ◽  
Glycol Methacrylate ◽  
Glycol Methyl Ether

A series of amphiphilic polydimethylsiloxane-b-poly[tri(ethylene glycol) methyl ether methacrylate] (PDMS-b-PM3) diblock copolymers were prepared with varying PM3 compositions.

Fluorinated amphiphilic block copolymers via RAFT polymerization and their application as surf-RAFT agent in miniemulsion polymerization

RSC Advances ◽  
2015 ◽  
Vol 5 (20) ◽  
pp. 15461-15468 ◽  
Author(s):  
Bishnu P. Koiry ◽  
Arindam Chakrabarty ◽  
Nikhil K. Singha
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Ethylene Glycol ◽  
Raft Polymerization ◽  
Miniemulsion Polymerization ◽  
Amphiphilic Block Copolymers ◽  
Poly Ethylene Glycol ◽  
Raft Agent ◽  
Poly Ethylene ◽  
Glycol Methyl Ether

Preparation of an amphiphilic block copolymer (Am-BCP) based on poly(ethylene glycol) methyl ether methacrylate (PEGMA) and heptafluorobutyl acrylate (HFBA) via RAFT polymerization and application of this Am-BCP as surf-RAFT agent for polymerization of styrene.

scholarly journals Chemical Synthesis and Characterization of Poly(poly(ethylene glycol) methacrylate)-Grafted CdTe Nanocrystals via RAFT Polymerization for Covalent Immobilization of Adenosine

Polymers ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 77 ◽  
Author(s):  
Trinh Duy Nguyen ◽  
Hieu Vu-Quang ◽  
Thanh Sang Vo ◽  
Duy Chinh Nguyen ◽  
Dai-Viet N. Vo ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Photoelectron Spectroscopy ◽  
Raft Polymerization ◽  
Condensation Reaction ◽  
Covalent Bond ◽  
Poly Ethylene Glycol ◽  
X Ray ◽  
Glycol Methacrylate ◽  
Cdte Qds ◽  
Poly Ethylene

This paper describes the functionalization of poly(poly(ethylene glycol) methacrylate) (PPEGMA)-grafted CdTe (PPEGMA-g-CdTe) quantum dots (QDs) via surface-initiated reversible addition–fragmentation chain transfer (SI-RAFT) polymerization for immobilization of adenosine. Initially, the hydroxyl-coated CdTe QDs, synthesized using 2-mercaptoethanol (ME) as a capping agent, were coupled with a RAFT agent, S-benzyl S′-trimethoxysilylpropyltrithiocarbonate (BTPT), through a condensation reaction. Then, 2,2′-azobisisobutyronitrile (AIBN) was used to successfully initiate in situ RAFT polymerization to generate PPEGMA-g-CdTe nanocomposites. Adenosine-above-PPEGMA-grafted CdTe (Ado-i-PPEGMA-g-CdTe) hybrids were formed by the polymer shell, which had successfully undergone bioconjugation and postfunctionalization by adenosine (as a nucleoside). Fourier transform infrared (FT-IR) spectrophotometry, energy-dispersive X-ray (EDX) spectroscopy, thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy results indicated that a robust covalent bond was created between the organic PPEGMA part, cadmium telluride (CdTe) QDs, and the adenosine conjugate. The optical properties of the PPEGMA-g-CdTe and Ado-i-PPEGMA-g-CdTe hybrids were investigated by photoluminescence (PL) spectroscopy, and the results suggest that they have a great potential for application as optimal materials in biomedicine.

scholarly journals Well-Defined Thermo-Responsive Copolymers Based on Oligo(Ethylene Glycol) Methacrylate and Pentafluorostyrene for the Removal of Organic Dyes from Water

Nanomaterials ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1779
Author(s):  
Federica Zuppardi ◽  
Mario Malinconico ◽  
Franck D’Agosto ◽  
Giovanna Gomez D’Ayala ◽  
Pierfrancesco Cerruti
Keyword(s):  
Molecular Weight ◽  
Ethylene Glycol ◽  
Self Assembly ◽  
Organic Contaminants ◽  
Organic Dyes ◽  
Raft Polymerization ◽  
Nile Red ◽  
Solution Temperature ◽  
Thermally Induced ◽  
Glycol Methacrylate

Thermo-responsive copolymers based on oligo(ethylene glycol) methacrylate (OEGMA, Mn = 300 g/mol) and pentafluorostyrene (PFS), coded PFG, were synthesized by RAFT polymerization, using a trithiocarbonate (CTTPC) as controlling agent. Different molar masses were targeted and dispersities lower than 1.51 were obtained. The thermally triggered self-assembly of the resulting PFG copolymers in water was investigated by dynamic light scattering (DLS). The lower critical solution temperature (LCST) slightly increased with the molecular weight in the 26–30 °C temperature range, whereas the sizes of the intermicellar aggregates formed upon self-assembly tended to decrease with increasing molecular weights (ranging from 1415 to 572 nm). The resulting thermally-induced polymer aggregates were then used to encapsulate and remove organic contaminants from water. Nile Red (NR) and Thiazole yellow G (TYG) were employed as hydrophobic and hydrophilic model contaminants, respectively. Experimental results evidenced that higher molecular weight copolymers removed up to 90% of NR from aqueous solution, corresponding to about 10 mg of dye per g of copolymer, regardless of NR concentration. The removal of TYG was lower with respect to NR, decreasing from about 40% to around 20% with TYG concentration. Finally, the copolymers were shown to be potentially recycled and reused in the treatment of contaminated water.

Micelles prepared from poly(N-isopropylacrylamide-co-tetraphenylethene acrylate)-b-poly[oligo(ethylene glycol) methacrylate] double hydrophilic block copolymer as hydrophilic drug carrier

2018 ◽  
Vol 6 (45) ◽  
pp. 7495-7502 ◽  
Author(s):  
YangYang Xu ◽  
Gaocan Li ◽  
Weihua Zhuang ◽  
HongChi Yu ◽  
Yanfei Hu ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Drug Release ◽  
Hydrogen Bonds ◽  
Ethylene Glycol ◽  
Drug Carrier ◽  
Glycol Methacrylate ◽  
Hydrophilic Drug ◽  
Double Hydrophilic Block Copolymers

Thermal-induced micelles prepared with P(NIPAAm-co-TPE)-b-POEGMA double hydrophilic block copolymers for hydrophilic drug release. Hydrogen bonds are formed between PNIPAAm and thymopentin.

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