Novel amphiphilic membranes of poly(N,N-dimethyl acrylamide) crosslinked with octa-methacrylate-telechelic polyisobutylene stars

Autor:	Stanislav A. Yankovski, Joseph P. Kennedy, Irada S. Isayeva
Rok vydání:	2002
Předmět:	Materials science Polymers and Plastics General Chemistry Condensed Matter Physics Methacrylate chemistry.chemical_compound Membrane chemistry Acrylamide Polymer chemistry Amphiphile Materials Chemistry Copolymer medicine Methanol Swelling medicine.symptom Glass transition
Zdroj:	Polymer Bulletin. 48:475-482
ISSN:	1436-2449 0170-0839
Popis:	A series of novel amphiphilic networks were synthesized by free-radical mediated copolymerization/crosslinking of N,N-dimethyl acrylamide (DMAAm) with various molecular weight octa-methacrylate telechelic polyisobutylene stars (PIB(MA)8) as crosslinking agents. The overall composition of the PDMAAm-l-PIB(MA)8 networks were controlled by controlling the concentration of the starting materials. Crosslinking was essentially complete as indicated by negligible sol fractions in both methanol and n-hexane. Swelling ratios and swelling rates of various PDMAAm-l-PIB(MA)8 in water and n-heptane were determined and contrasted with those of networks prepared with di- and tri-methacrylate-telechelic PIB croslinkers (PIB(MA)2 and PIB(MA)3). The mechanical properties of water-swollen tubules made of PDMAAm-l-PIB(MA)8 were studied and compared with tubules made with PIB(MA)2 and PIB(MA)3.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::49042363ea3130d2cac6a6eb817aa06b https://doi.org/10.1007/s00289-002-0062-7 Zobrazit plný text záznamu Full text from SpringerLink