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Preparation and morphology of a silicone‐acrylate copolymer system
Author(s) -
Williams Todd R.
Publication year - 1986
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1986.070310515
Subject(s) - copolymer , differential scanning calorimetry , materials science , small angle x ray scattering , acrylate , silicone , polymer chemistry , siloxane , methacrylate , polymer , butyl acrylate , morphology (biology) , chemical engineering , composite material , scattering , thermodynamics , optics , physics , genetics , biology , engineering
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 urethane methacrylate end groups ( M n 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 co‐polymers 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 siloxane‐containing alternating block copolymers reported in the literature.