Polytetrahydrofuran amphiphilic networks. I. Synthesis and characterization of polytetrahydrofuran acrylate ditelechelic and polyacrylamide-I-potytetrahydrofuran networks

Citation
Y. Guan et al., Polytetrahydrofuran amphiphilic networks. I. Synthesis and characterization of polytetrahydrofuran acrylate ditelechelic and polyacrylamide-I-potytetrahydrofuran networks, J POL SC PC, 38(20), 2000, pp. 3812-3820
Citations number
21
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
ISSN journal
0887-624X → ACNP
Volume
38
Issue
20
Year of publication
2000
Pages
3812 - 3820
Database
ISI
SICI code
0887-624X(20001015)38:20<3812:PANISA>2.0.ZU;2-S
Abstract
A series of novel amphiphilic polyacrylamide-l-polytetrahydrofuran (PAm-l-P THF) networks were prepared by the free-radical copolymerization of hydroph obic ditelechelic polytetrahydrofuran acrylate (PTHFDA) with hydrophilic ac rylamide. PTHFDA was synthesized by acrylation of the corresponding hydroxy capped PTHF with acrylic acid in cyclohexane. After acrylation, there was n o significant difference in the molecular weights and molecular weight dist ributions between the original PTHF and the resulting PTHFDA. Network struc tures and compositions were characterized by elemental analyses, Fourier tr ansform infrared, differential scanning calorimetry, scanning electron micr oscopy, and swelling data. The networks can swell both in organic solvents and in water, which indicates that they are amphiphilic. The swelling of th e networks in different solvents is composition-dependent. According to dif ferential scanning calorimetry, scanning electron microscopy, and swelling tests, the networks have a microphase-separated and bicontinuous morphology . (C) 2000 John Wiley & Sons, Inc.