TY - JOUR
T1 - Blends of fatty-acid-modified dendrimers with polyolefins
AU - Bauer, B.J.
AU - Ramzi, A.
AU - Liu, Da-Wei
AU - Scherrenberg, R.L.
AU - Froehling, P.
AU - Joosten, J.
PY - 2000
Y1 - 2000
N2 - Blends were made by solution and melt-mixing fatty-acid-modified dendrimers with various polyolefins. Small-angle neutron scattering (SANS) was used to determine the miscibility of the blends. Poly(propylene imine) (PPI) dendrimers G1, G3, and G5 [DAB-dendr-(NH2)y] with y = 4, 16, and 64, were reacted with stearic acid or stearic acid-d35 forming amide bonds. The modified dendrimers were then blended with high-density polyethylene (HDPE), high-density polyethylene-d4 (HDPE-d4), low-density polyethylene (LDPE), amorphous polypropylene (PP), or an ethylene-butylene copolymer (E-co-B). Limiting power law behavior shows that all of the blends are immiscible. It is likely that the dendrimers form a second phase, being finely dispersed, but thermodynamically immiscible.
AB - Blends were made by solution and melt-mixing fatty-acid-modified dendrimers with various polyolefins. Small-angle neutron scattering (SANS) was used to determine the miscibility of the blends. Poly(propylene imine) (PPI) dendrimers G1, G3, and G5 [DAB-dendr-(NH2)y] with y = 4, 16, and 64, were reacted with stearic acid or stearic acid-d35 forming amide bonds. The modified dendrimers were then blended with high-density polyethylene (HDPE), high-density polyethylene-d4 (HDPE-d4), low-density polyethylene (LDPE), amorphous polypropylene (PP), or an ethylene-butylene copolymer (E-co-B). Limiting power law behavior shows that all of the blends are immiscible. It is likely that the dendrimers form a second phase, being finely dispersed, but thermodynamically immiscible.
U2 - 10.1002/(SICI)1099-0488(20000101)38:1<95::AID-POLB12>3.3.CO;2-X
DO - 10.1002/(SICI)1099-0488(20000101)38:1<95::AID-POLB12>3.3.CO;2-X
M3 - Article
SN - 0887-6266
VL - 38
SP - 95
EP - 100
JO - Journal of Polymer Science, Part B: Polymer Physics
JF - Journal of Polymer Science, Part B: Polymer Physics
IS - 1
ER -