摘要 : The morphology of silica particles generated in situ in PDMS networks in the presence of two types of catalysts is evaluated by using different techniques including solid-state Si-29 MAS NMR, near-infrared spectroscopies and small... 展开 The morphology of silica particles generated in situ in PDMS networks in the presence of two types of catalysts is evaluated by using different techniques including solid-state Si-29 MAS NMR, near-infrared spectroscopies and small-angle X-ray scattering. The interactions with the poly(dimethylsiloxane) chains are examined through the swelling properties and thermal characteristics (in particular crystallization process) of the composites. In addition, H-1 NMR is used to investigate the adsorption layer of reduced mobility on the particle surface. © 2005 Elsevier Ltd. All rights reserved. 收起