نتایج جستجو برای: propylene copolymers
تعداد نتایج: 14528 فیلتر نتایج به سال:
The value and merit of triethylborane (TEB)-based ate complexes for the synthesis various oxygenated polymers have been recently illustrated through successful examples homopolymerization epoxides their copolymerization with CO2, CS2, COS, anhydrides, isocyanates, etc. To further expand scope TEB-based initiating systems to a broader family polymers, they were used in this study anionically pol...
in this research we used heavy propylene tetramer (hpt) and a1c13 —bf3 (lewis acids) ascatalyst and ethanol, n-propanol and n-butanol as co-catalyst. using lewis acids as catalyst, thehpts form molecules with higher molecular weight. since the raw materials of the reaction are byproducts of other reactions, are not pure and contain various compounds with different m.w andalso different chemical...
The solution properties of water-soluble amphiphiles in nonaqueous polar solvents are important in the elucidation of the effects of solvent quality on self-assembly and also in practical applications where the use of water as a solvent is undesirable. We studied the self-assembly of a poly(ethylene oxide)-poly(propylene oxide) (PEO-PPO) block copolymer (Pluronic P105: EO37PO58EO37) in formamid...
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