TY - JOUR
T1 - Hemi-telechelic and telechelic organic/inorganic poly(ethylene oxide) hybrids based on polyhedral oligmeric silsesquioxanes (POSSs)
T2 - Synthesis, morphology and self-assembly
AU - Zhang, Weian
AU - Wang, Shaolei
AU - Kong, Jie
PY - 2012/9
Y1 - 2012/9
N2 - Amphiphilic hemi-telechelic and telechelic poly(ethylene oxide) (PEO) hybrids based on polyhedral oligmeric silsesquioxane (POSS) were prepared via the copper-catalyzed azide-alkyne "click" reaction. Thermal properties of POSS-PEO were characterized using differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA). The result shows that the thermal properties of telechelic POSS-PEO are effectively enhanced by POSS. The morphology of the POSS-containing PEO hybrid crystals was investigated using polarized optical microscopy (POM), and the results indicate that it is much easier for the POSS in the telechelic POSS-PEO hybrids (T-POSS-PEO) to form quite large aggregates, which act as nucleating agents during the crystallization of the PEO chains. The self-assembly behavior of POSS-PEO in water was also studied using transmission electron microscopy (TEM). The results reveal that hemi-telechelic POSS-PEO hybrids (HT-POSS-PEO) can self-assemble into spherical aggregates, whereas the T-POSS-PEO hybrids self-assemble into ellipsoidal aggregates.
AB - Amphiphilic hemi-telechelic and telechelic poly(ethylene oxide) (PEO) hybrids based on polyhedral oligmeric silsesquioxane (POSS) were prepared via the copper-catalyzed azide-alkyne "click" reaction. Thermal properties of POSS-PEO were characterized using differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA). The result shows that the thermal properties of telechelic POSS-PEO are effectively enhanced by POSS. The morphology of the POSS-containing PEO hybrid crystals was investigated using polarized optical microscopy (POM), and the results indicate that it is much easier for the POSS in the telechelic POSS-PEO hybrids (T-POSS-PEO) to form quite large aggregates, which act as nucleating agents during the crystallization of the PEO chains. The self-assembly behavior of POSS-PEO in water was also studied using transmission electron microscopy (TEM). The results reveal that hemi-telechelic POSS-PEO hybrids (HT-POSS-PEO) can self-assemble into spherical aggregates, whereas the T-POSS-PEO hybrids self-assemble into ellipsoidal aggregates.
KW - Poly(ethylene oxide)
KW - Polyhedral oligmeric silsesquioxanes (POSSs)
KW - Self-assembly
KW - Telechelic
UR - http://www.scopus.com/inward/record.url?scp=84863095742&partnerID=8YFLogxK
U2 - 10.1016/j.reactfunctpolym.2012.04.001
DO - 10.1016/j.reactfunctpolym.2012.04.001
M3 - 文章
AN - SCOPUS:84863095742
SN - 1381-5148
VL - 72
SP - 580
EP - 587
JO - Reactive and Functional Polymers
JF - Reactive and Functional Polymers
IS - 9
ER -