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Symmetric and asymmetric spiro-type colorless poly(ester imide)s with low coefficients of thermal expansion, high glass transition temperatures, and excellent solution-processability - ScienceDirect
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![Selfie] After 3 years, I've finally figured out my skin! Using tretinoin for 3 years, and spiro helped me pushed to the end over the past 7 months. : r/SkincareAddiction Selfie] After 3 years, I've finally figured out my skin! Using tretinoin for 3 years, and spiro helped me pushed to the end over the past 7 months. : r/SkincareAddiction](https://preview.redd.it/znzkab8op1d91.jpg?width=640&crop=smart&auto=webp&s=f3168a2da2ec0312f7b9e00e87a81256eb705371)
Selfie] After 3 years, I've finally figured out my skin! Using tretinoin for 3 years, and spiro helped me pushed to the end over the past 7 months. : r/SkincareAddiction
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Narrow scan XPS spectra of Spiro-OMeTAD film with Au residue. Au was... | Download Scientific Diagram
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