Water-soluble cationic copolymers of formula (I) with hydrolytically-stable quat. ammonium units (A) and sec. amine units (B). R1 = 1-12C alkyl; R2 = 1-3C alkyl; X = a suitable counter-ion; and a, b = 1-99 mol% based on units in the whole molecule. An Independent claim is ...
就是这句话的解释:ionic compounds are often soluble in water because water is a polar molecule and is attracted to the ions.要的是解释不是翻译(不是很理解“water is a polar molecule and is attracted to the ions” 相关知识点: 试题来源: 解析 由离子构成的分子,遇水会进行离子的游离,与水中的H...
ioniccompoundssolubilityruleswater离子 Solubility Rules for Common Ionic Compounds in Water(25 ◦ C) Soluble Compounds : 1.Those compounds containing alkali metal ions: Li + ,Na + , K + ,,Rb + , Cs + , NH 4 + 2. Those containing nitrates, bicarbonates and chlorates 3. Those containin...
Water-soluble compounds in the filler (such assodiumorpotassiumsalts) may be affected by outdoor exposure, so damaging the performance of the compound. For example, an outdoor application with a calcium carbonate-filled compound may have its outer layer converted to calcium sulphide and then toca...
A water-soluble ionic conjugated polymer with pyridyl functional groups, poly(2-ethynyl-N-pentylpyridinium iodide)[PEPPI] was synthesized via the activated polymerization of 2-ethynylpyridine using 1-iodopentane without any additional initiator or catalyst. The polymerization proceeded well to provide a...
Is the compound CsOH soluble or insoluble in water? Explain. Describe how you would synthesize the following ionic compounds: A) Fe(OH)3-insoluble B) KNO3-soluble Is the compound Ba(OH)2 soluble or insoluble in water? Explain. Is the compound Na2O soluble or insoluble in water? ...
atmosphere Article Water-Soluble Ionic Composition of Aerosols at Urban Location in the Foothills of Himalaya, Pokhara Valley, Nepal Lekhendra Tripathee 1,2,3, Shichang Kang 1,4,*, Dipesh Rupakheti 5, Qianggong Zhang 4,5, Jie Huang 5 and Mika Sillanpää 2 1 State Key Laboratory of ...
Therefore, the use of water-soluble photoinitiators in aqueous systems for light-initiated polymerization is of great importance in the rapidly growing medical industry, and this article provides an overview of the literature related to the development of water-soluble initiators and their use in ...
Water-soluble or water-swellable polymers, particularly water-soluble or water-swellable copolymers made of acrylamide and at least one ionic comonomer hav... Water-soluble or water-swellable polymers, particularly water-soluble or water-swellable copolymers made of acrylamide and at least one ionic ...
A water-soluble resin comprises a water-soluble polymer and a water soluble filler. The resin may be injection moulded. Also claimed is an extrudable resin. The polymer is preferably film forming and may comprise polyvinyl alcohol, polyvinyl pyrrolidone, partially hydrolysed polyvinyl acetate or a ...