Synthesis of PVDF Bottlebrush Polymer and Architecture Effect on PVDF Crystalline Phases
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초록
내용
Bottlebrush polymers (BBPs) consist of a linear backbone and grafted side chains. The high branch-to-backbone ratio in these systems causes BBPs to adopt different conformational behavior compared to linear polymers, making them a topic of interest. PVDF is one of the piezoelectric polymers with high chemical resistance. The piezoelectric effect is the ability of certain materials to generate an electric charge in response to applied mechanical stress and thus, materials with piezoelectric crystals are promising candidates for energy generation. PVDF has five crystalline phases (α, β, γ, δ, and ε). β-phase has the highest aligned instant dipoles and exhibits the best piezoelectric response. Therefore, increasing the crystallinity and β-phase of PVDF is an important research topic. Here, we synthesized PVDF BBPs to investigate how the architectural effect of PVDF BBPs affect the PVDF crystalline phase, and ultimately attempted to increase the PVDF β-phase.