Abstract
Four-armed, star-shaped poly(D,L-lactide) (PDLLA) was synthesized and terminally-functionalized with either adenine or thymine complementary hydrogen bonding groups (PDLLA-A and PDLLA-T, respectively). The strong hydrogen bonding led to increased viscosity below the dissociation temperature of the hydrogen bonds. Rheology confirmed that these bonds were thermally reversible, with a sharp reduction in viscosity near 100°C. PDLLA, PDLLA-A, and PDLLA-T were melt electrospun with no significant change in fiber diameter (all between 3.6 and 4.0 μm). However, a blend of PDLLA-A and PDLLA-T formed fibers with an average diameter of 9.8 ± 2.0 μm, resulting from the hydrogen bond associations. Also, the phospholipid 1-palmitoyl-2-oleoyl-sn-glycero-3- phosphoethanolamine (POPE) was melt electrospun at 200°C and formed uniform fibers with average fiber diameter of 6.5 ± 2.0 μm.
Original language | English |
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Pages (from-to) | 1-7 |
Number of pages | 7 |
Journal | Macromolecular Symposia |
Volume | 270 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2008 Aug 1 |
Externally published | Yes |
Keywords
- Hydrogen bonding
- Melt electrospinning
- Phospholipids
- Poly(D,L-lactide)
- Thermoreversible
ASJC Scopus subject areas
- Organic Chemistry
- Materials Chemistry
- Polymers and Plastics
- Condensed Matter Physics