Macromolecular Chemistry and Physics · 2001 · 31 citations · 0 references
Natural SciencesChemistryMaterials ScienceOrganic ChemistryPolymer ChemistryPolymer MaterialsPolymer AnalysisPolymer CharacterizationPolymer Physical ChemistryPolymer ProductionPolymer StructurePolymerization ChemistryPolymer Molecular CharacteristicsPolymer Structural ElucidationStructural DefectsThermogravimetric CalorimetryThermogravimetric CurvesThermogravimetric Data AnalysisVapor Pressure OsmometryX-ray Diffraction Analysis
Two novel kinds of alcohol-soluble ladderlike poly(silsesquioxane)s containing side-chain hydroxy groups (OH-T1 and OH-T2) were prepared successfully for the first time by hydrolysis of ladderlike poly(silsesquioxane)s with side-chain ester groups (Ester-T1 and Ester-T2), which were synthesized by stepwise coupling polymerization. A variety of characterization methods including FT-IR, 1H NMR, 13C NMR, 29Si NMR, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), vapor pressure osmometry (VPO), gel permeation chromatography (GPC), and X-ray diffraction (XRD) were combined to demonstrate that the obtained alcohol-soluble polymers have ladderlike structures, although some structural defects still existed.