Data for: Facile Preparation of Tunable Polyborosiloxane Networks via Hydrosilylation

Polyborosiloxanes are used in a variety of fields due to their unique and useful dynamic properties. Traditionally, crosslinked polyborosiloxanes are prepared by incorporating boric acid into siloxane pre-polymers, a process that is time consuming, energy intensive, and challenging due to the immiscibility of the reagents. Here, we report a versatile synthetic method to rapidly cure polyborosiloxane networks via hydrosilylation of chain-end or backbone functionalized polydimethylsiloxane (PDMS) derivatives with an inexpensive trivinylboronate. Networks synthesized from these readily available building blocks cure in ~2 minutes at convenient temperatures (e.g., 90 °C) and exhibit enhanced viscoelastic behavior when compared to traditional polyborosiloxane networks fabricated via the conventional condensation route. By virtue of using efficient hydrosilylation chemistry, another key advantage of this synthetic platform is the ability to synthesize dynamic polyborosiloxanes with different ..., Chemical Characterization
Attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) spectra were collected on a Nicolet is10 spectrometer with a diamond ATR accessory. All spectra were collected with 64 scans and a 4 cm–1 resolution in absorbance mode, baseline corrected, and displayed in transmittance mode. Proton nuclear magnetic resonance (NMR) spectra were taken on a Varian Unity Inova AS600 600MHz at 25 °C with 16 scans and a relaxation delay (d1) of 15 seconds. Solution state 11B, 13C, and 29Si NMR spectra were taken on a Bruker Avance NEO 500 MHz at 25 °C. 11B spectra used a d1 value of 2 seconds and 64 scans. 13C used a d1 value of 2 seconds and 256 scans. 29Si used a d1 value of 60 seconds and 32 scans. Solid-state NMR (ssNMR) spectra were taken on a Bruker AVANCE500 WB with magic-angle spinning (MAS) of 14 kHz at 30° pulses. Samples were ground and placed into a 4 mm Bruker zirconia rotor. 29Si ssNMR spectra were captured with a d1 of 30 seconds and 4856 ..., , # Facile Preparation of Tunable Polyborosiloxane Networks via Hydrosilylation

[https://doi.org/10.5061/dryad.tx95x6b54](https://doi.org/10.5061/dryad.tx95x6b54)

This dataset provides tabulated values for all the plots featured in the associated manuscript, including rheometry, nuclear magnetic resonance (NMR) spectroscopy, Fourier transform infrared (FTIR) spectroscopy, swelling, and gel fraction data. The dataset is separated into two primary folders, each containing subfolders corresponding to each manuscript figure from the main text or supplementary information.

## Description of the data and file structure

This dataset is separated into two primary folders—MainText and SupplementaryInformation. Each primary folder contains subfolders corresponding to a Figure. Each of these subfolders contains one or more CSV files corresponding to a plot contained in that Figure. Within each CSV file, data are arranged in columns with labels of the structure FigureName_TraceIdentifier_axis.