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Poly(ethylene glycol) Octafunctionalized Polyhedral Oligomeric Silsesquioxane:  WAXD and Rheological Studies

Title
Poly(ethylene glycol) Octafunctionalized Polyhedral Oligomeric Silsesquioxane:  WAXD and Rheological Studies
Author
Hussain, Manwar
Keywords
ORGANIC-INORGANIC NANOCOMPOSITES; POLY(NORBORNYL-POSS) COPOLYMERS; SYNTHETIC PLATFORMS; MOLECULAR-WEIGHT; POLYMERS; POLYPROPYLENE; POLYSTYRENE; PRECURSORS; BEHAVIOR; POSS
Issue Date
2007-06
Publisher
AMER CHEMICAL SOC
Citation
BIOMACROMOLECULES, v. 40, No. 13, Page. 4530-4534
Abstract
A homologous series of PEG (various chain length)-substituted octasilsesquioxanes prepared by the hydrosilylation of unsaturated PEGs (poly(ethylene glycol)s) with octa(dimethylsiloxy)silsesquioxane (Q(8)M(8)(H)) were studied by wide-angle X-ray diffraction WAXD and rheology. The WAXD results indicate that neat POSS is highly crystalline material, while its PEG hybrids show evidence of small, disordered POSS crystals. Rheological characterization shows largely Newtonian behavior of POSS-PEG materials, with an interesting interplay between attached PEG chain length and weight fraction of POSS, with regards to melt viscosity and activation energy of flow.
URI
https://pubs.acs.org/doi/abs/10.1021/ma070276shttps://repository.hanyang.ac.kr/handle/20.500.11754/106664
ISSN
0024-9297
DOI
10.1021/ma070276s
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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