Log In Sign up
The largest database of trusted experimental protocols

Polytetrahydrofuran

Manufactured by Merck Group
Visit Supplier

Polytetrahydrofuran is a synthetic polymer that is commonly used as a raw material in the production of various laboratory equipment. It is a colorless, odorless, and viscous liquid with a high molecular weight. Polytetrahydrofuran is known for its chemical stability, flexibility, and compatibility with a wide range of solvents and materials, making it a versatile component in the manufacturing of laboratory equipment.

Automatically generated - may contain errors

Lab products found in correlation

Ferric chloride, by Merck Group (1 mentions) Isophorone diisocyanate, by Merck Group (1 mentions) Dimethylolpropionic acid, by Merck Group (1 mentions) Triethylamine, by Merck Group (1 mentions) Dimethylformamide, by Merck Group (1 mentions) Dopamine hydrochloride, by Merck Group (1 mentions) Dibutyltin dilaurate, by Merck Group (1 mentions) Isophorone diisocyanate, by Thermo Fisher Scientific (1 mentions) N n dimethylformamide (dmf), by Thermo Fisher Scientific (1 mentions) 2 6 di tert butyl cresol, by Merck Group (1 mentions)

4 protocols using polytetrahydrofuran

1

Synthesis of Polyurethane Containing Dopamine

Check if the same lab product or an alternative is used in the 5 most similar protocols
Analytical grade polytetrahydrofuran (PTMEG, Mn ≈ 2000), isophorone diisocyanate (IPDI), dimethyl formamide (DMF), dimethylol propionic acid (DMPA), dibutyltin dilaurate (DBTDL), dopamine hydrochloride, ferric chloride, and triethylamine (TEA) were purchased from Sigma-Aldrich and used as received without further purification. Hydroxyl-terminated hyperbranched polyester (n(–OH) = 12, Mn ≈ 1250) was purchased from Wuhan Hyperbranched Polymer Science & Technology Co., Ltd, China. PTMEG was dehydrated at 100 °C under vacuum for more than 24 h in advance.
Xia N.N., Xiong X.M., Wang J., Rong M.Z, & Zhang M.Q. (2016). A seawater triggered dynamic coordinate bond and its application for underwater self-healing and reclaiming of lipophilic polymer †Electronic supplementary information (ESI) available: Route of synthesis, details of characterization methods, and results of structure and property measurements. See DOI: 10.1039/c5sc03483c. Chemical Science, 7(4), 2736-2742.
+ Open protocol
+ Expand
2

Synthesis of IPDI-based Polyurethane

Check if the same lab product or an alternative is used in the 5 most similar protocols
Isophorone diisocyanate (IPDI) was purchased from Acros Organics. N,N-dimethylformamide (DMF) was acquired from Fisher Scientific. Polytetrahydrofuran (PTHF) (Mn = 250) and dibuyltin dilaurate (DBTDL) were purchased from Sigma-Aldrich Co. Traces of moisture were removed from PTHF drying at 65 °C in under vacuum for 24 h. All other chemicals were used as received.
Hornat C.C, & Urban M.W. (2020). Entropy and interfacial energy driven self-healable polymers. Nature Communications, 11, 1028.
+ Open protocol
+ Expand
3

Synthesis of PTHF-Based Photopolymer

Check if the same lab product or an alternative is used in the 5 most similar protocols
Polytetrahydrofuran with an average molecular mass of 2900 g/mol (PTHF2900), 2-ethylhexyl acrylate (2-EHA), methacrylic anhydride (MAA), as well as 2,6-di-tert-butyl-cresol (BHT) were purchased from Sigma Aldrich (Vienna, Austria) and used without further purification. 2,4,6-Trimethylbenzoylphenyl phosphinate (Omnirad TPO-L) was provided by IGM Resins (Walwijk, The Netherlands).
Ebner C., Mitterer J., Eigruber P., Stieger S., Riess G, & Kern W. (2020). Ultra-High Through-Cure of (Meth)Acrylate Copolymers via Photofrontal Polymerization. Polymers, 12(6), 1291.
+ Open protocol
+ Expand
4

Fabrication of Porous PU Mass Transfer Devices

Check if the same lab product or an alternative is used in the 5 most similar protocols
The PU (polyurethane) mass transfer device was fabricated by a salt leaching/phase inversion method based on our previous study [33 (link), 34 ]. The procedure is as follows: a PU solution of 25% (w/v) was prepared by dissolving PU pellets (Tecflex® SG-85A, Lubrizol, Wickliffe, OH) in N,N-dimethyl formamide (DMF; Sigma-Aldrich, St. Louis, Mo). Sodium chloride (NaCl; Sigma-Aldrich) crystals were ground and sieved to select sizes smaller than 70 μm and were mixed with the PU solution at 9/1 (NaCl/PU) weight ratios. Polytetrahydrofuran (Sigma-Aldrich) was also added to the NaCl-PU mixture in 25% (v/v) volume ratio as a soluble filler to enhance the interconnectivity of the porous scaffolds. The mixed solution was well stirred and then injected into glass cylinder molds. Porous PU scaffolds were formed by submerging the cylinder molds in 65% of ethanol with 1% DMF via phase inversion for 48 hours. After separating from the molds, the porous PU scaffolds were rinsed in distilled water for 24 hours in order to remove NaCl crystals. After the rinsing step, the porous PU scaffolds (diameter: 2.5 mm, long: 25 mm) were preserved in PBS and utilized as mass transfer devices for the further experiments. The device length of 25 mm was chosen because of sufficient length (8 mm) in NP region and better manipulation during the insertion procedure.
Wang Y.F., Levene H.B., Gu W, & Huang C.Y. (2017). Enhancement of Energy Production of the Intervertebral Disc by the Implantation of Polyurethane Mass Transfer Devices. Annals of biomedical engineering, 45(9), 2098-2108.
+ Open protocol
+ Expand

About PubCompare

Our mission is to provide scientists with the largest repository of trustworthy protocols and intelligent analytical tools, thereby offering them extensive information to design robust protocols aimed at minimizing the risk of failures.

We believe that the most crucial aspect is to grant scientists access to a wide range of reliable sources and new useful tools that surpass human capabilities.

However, we trust in allowing scientists to determine how to construct their own protocols based on this information, as they are the experts in their field.

Ready to get started?

Sign up for free.
Registration takes 20 seconds.
Available from any computer
No download required

Sign up now

Revolutionizing how scientists
search and build protocols!