Self-Assembly and Photo-Cross-Linking of Eight-Armed PEG-PTMC Star Block Copolymers (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Self-Assembly and Photo-Cross-Linking of Eight-Armed PEG-PTMC Star Block Copolymers (Articolo in rivista) (literal)

Anno

• 2011-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1021/bm200515h (literal)

Alternative label

• Buwalda, Sytze J.; Perez, Laura B.; Teixeira, Sandra; Calucci, Lucia; Forte, Claudia; Feijen, Jan; Dijkstra, Pieter J. (2011)
  Self-Assembly and Photo-Cross-Linking of Eight-Armed PEG-PTMC Star Block Copolymers
  in Biomacromolecules; ACS, American chemical society, Washington, DC (Stati Uniti d'America)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Buwalda, Sytze J.; Perez, Laura B.; Teixeira, Sandra; Calucci, Lucia; Forte, Claudia; Feijen, Jan; Dijkstra, Pieter J. (literal)

Pagina inizio

• 2746 (literal)

Pagina fine

• 2754 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 12 (literal)

Rivista

• Biomacromolecules (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• University of Twente, Deptartment of Polymer Chemistry and Biomataterials, Faculty of Science & Technology, MIRA , NL-7500 AE Enschede, Netherlands CNR, Istituto di Chimica dei Composti OrganoMetallici, I-56124 Pisa, Italy (literal)

Titolo

• Self-Assembly and Photo-Cross-Linking of Eight-Armed PEG-PTMC Star Block Copolymers (literal)

Abstract

• Eight-armed poly(ethylene glycol)-poly(trimethylene carbonate) star block copolymers (PEG-(PTMC)(8)) linked by a carbamate group between the PEG core and the PTMC blocks were synthesized by the metal-free, HCl-catalyzed ring-opening polymerization of trimethylene carbonate using an amine-terminated eight-armed star PEG in dichloromethane. Although dye solubilization experiments, nuclear magnetic resonance spectroscopy, and dynamic light scattering clearly indicated the presence of aggregates in aqueous dispersions of the copolymers, no physical gelation was observed up to high concentrations. PEG-(PTMC(9))(8) was end-group-functionalized using acryloyl chloride and photopolymerized in the presence of Irgacure 2959. When dilute aqueous dispersions of PEG-(PTMC(9))(8)-Acr were UV irradiated, chemically crosslinked PEG-PTMC nanoparticles were obtained, whereas irradiation of more concentrated PEG-(PTMC(9))(8)-Acr dispersions resulted in the formation of photo-cross-linked hydrogels. Their good mechanical properties and high stability against hydrolytic degradation make photo-cross-linked PEG-PTMC hydrogels interesting for biomedical applications such as matrices for tissue engineering and controlled drug delivery systems. (literal)

Editore

• ACS, American chemical society (Editore)

Prodotto di

• Istituto di chimica dei composti organo metallici (ICCOM) (Istituto)
• Spettroscopie di risonanza magnetica applicata alla scienza dei materiali (MD.P03.035.002) (Modulo)

Autore CNR

• LUCIA CALUCCI (Persona)
• CLAUDIA FORTE (Persona)

Incoming links:

Prodotto

• Istituto di chimica dei composti organo metallici (ICCOM) (Istituto)
• Spettroscopie di risonanza magnetica applicata alla scienza dei materiali (MD.P03.035.002) (Modulo)

Autore CNR di

• CLAUDIA FORTE (Persona)
• LUCIA CALUCCI (Persona)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Biomacromolecules (Rivista)

Editore di

• ACS, American chemical society (Editore)