✦ LIBER ✦

Preparation and morphology of a silicone-acrylate copolymer system

✍ Scribed by Todd R. Williams

Publisher: John Wiley and Sons
Year: 1986
Tongue: English
Weight: 721 KB
Volume: 31
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.1986.070310515

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✦ Synopsis

This paper presents the synthesis and analysis of a new series of silicone acrylate (SiAc) copolymers. The building block oligomers are linear polydimethylsiloxanes with alkylene ur- ethane methacrylate end groups ( M , 1000-3000). A variety of analyses were performed in order to elucidate the morphology of these copolymers. Data are presented from differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), permeability testing, small angle x-ray scattering (SAXS), and electron microscopy. These data indicate that these copolymers possess a two-phase morphology in the range of compositions studied. Conclusions are drawn about the continuity, shape, and size of the domains. Some comparisons are made between data for these "ladder" polymers and data for siloxanecontaining alternating block copolymers reported in the literature.

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