tetramethylene


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Related to tetramethylene: Tetramethylene oxide, Tetramethylenediamine

tetramethylene

[¦te·trə′meth·ə‚lēn]
(organic chemistry)
References in periodicals archive ?
The first group of polyols tested were polyethers, consisting of polyethylene glcol), PEG; polypropylene glycol), PPG; and poly(tetramethylene glycol), PTHF.
Poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO, 2000 g/mol, PEG, 50 wt% Sigma Aldrich, USA), PPG (2000 g/mol, Sigma Aldrich, USA), poly(tetramethylene ether glycol) [PTMG, 2000 g/mol, MCC Advanced Polymers (Ningbo, China)], and dimethylol propionic acid (DMPA, Perstorp, Sweden) were dried at 80[degrees]C in a vacuum oven for 12 h before use.
where 4G is butylene glycol, B is poly(tetramethylene ether glycol) and T is terephthalate.
DMEM medium, dimethyl sulfoxide (DMSO), acrylamide/bis TEMED (tetramethylene diamine), 3-(4, 5-dimethylthiazol-2-yl)2, 5-diphenyl-tertazolium bromide (MTT), penicillin, streptomycin, tryspin-EDTA, [alpha]-melanocyte stimulating hormone ([alpha]-MSH), arbutin, and anti-[beta]-actin were purchased from Sigma-Aldrich Co.
Rambabu, "Nanocomposite hybrid membranes containing polyvinyl alcohol or poly(tetramethylene oxide) for fuel cell applications," Journal of Applied Electrochemistry, vol.
First, prepolymers are produced from poly(tetramethylene oxide) and toluenediisocyanate.
MCC is currently offering various petrochemical production technologies, such as acrylic acid and its esters, oxo alcohols, poly tetramethylene ether glycol (PTMG), maleic anhydride, bisphenol-A (BPA) and purified terephthalic acid (PTA).
Poly(tetramethylene oxide) glycol (PTMO-2000), polyethylene glycol (PEG-2000) based TPU with 20 and 30 % urea hard segment content was synthesized and used for the study.
One hundred p1 of tetramethylene benzidine dihydrochloride (Kem-En-Tec) was then added as the substrate.
Properties of a bacterium, which degrades solid Poly (tetramethylene succenate)co-adipate, a biodegradable plastic.
Hydrogels based on poly(ethylene oxide) and poly(tetramethylene oxide) or poly (dimethyl siloxane): synthesis, characterization, in vitro protein adsorption and platelet adhesion.
A multitude of polymers have been investigated for the purposes of hydrogel synthesis, including poly(tetramethylene oxide) (PTMO), poly(dimethyl siloxane) (PDMS), and poly(ethylene oxide) (PEO) (32) poly(ethylene glycol) di-[ethyl phosphatidyl (ethylene glycol) methacrylate] (PhosPEG-dMA) (39), PEG/[PD.sub.5]/PDMS (40), and poly (N, N-dimethyl acrylamide (PDMAAm) (35).