CAS: 1119-94-4; Dodecyl Trimethyl Ammonium Bromide

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CAS号143-15-7 溴代十二烷 | CAS号75-50-3 三甲胺 | CAS号26204-55-7 十二烷基溴化胺 | CAS号616-38-6 碳酸二甲酯 | CAS号19959-22-9 Dodecyldimethyl... | CAS号124-22-1 十二胺 | CAS号74-88-4 碘甲烷 | CAS号74-83-9 溴甲烷 | CAS号112-18-5 十二烷基二甲基叔胺

溴甲烷,十二烷基二甲基叔胺 以 乙醇 用作溶剂,化学反应生成月桂基三甲基溴化铵
参考文献:Properties Of Dilute Aqueous Solutions Of Double-Chain Surfactants,Alkyldodecyldimethylammonium Bromides With A Change In The Length Of The Alkyl Chains
标题:Properties Of Dilute Aqueous Solutions Of Double-Chain Surfactants,Alkyldodecyldimethylammonium Bromides With A Change In The Length Of The Alkyl Chains
摘要:合成了一系列阳离子表面活性剂,即以十二烷基为第一烷基链,以甲基,乙基,丙基,丁基,己基,辛基和癸基为第二烷基链的二烷基二甲基溴化铵,以及以二辛基,二癸基和二十二烷基为对称烷基链的阳离子表面活性剂,并通过测量其水溶液的电导率和气液表面张力来研究它们的性质,从而根据弗鲁姆金方程形式的二维晶格模型确定它们在配方中的临界胶束浓度(cmc)和表面吸附参数.Cmc 的变化表明,对于第二烷基链较短的不对称双链表面活性剂来说,每个亚甲基单位从水转移到胶束的自由能很小,随着第二烷基的拉长,其自由能接近于单链和对称双链表面活性剂的自由能.对于所研究的所有种类,转移到空气-溶液界面的自由能随着碳氢链总长度的增加而近似线性下降.对称双链表面活性剂分子的晶格面积随着碳氢化合物长度的增加而减小.在一系列不对称分子中,第二个烷基为己基的分子的晶格面积最大.
Doi:10.1246/bcsj.76.1903

专利信息

专利号:US-2012190064-A1
优先权日:2004-10-01
标题 :Feeding buffers, systems, and methods for in vitro synthesis of biomolecules
发明人：KUDLICKI WIESLAW ANTONI; KEPPETIPOLA SHIRANTHI; FLETCHER JULIA; GETBEHEAD ASHLEY ELAINE; KATZEN FEDERICO; VOZZA-BROWN LAURA
权利人:KUDLICKI WIESLAW ANTONI; KEPPETIPOLA SHIRANTHI; FLETCHER JULIA; GETBEHEAD ASHLEY ELAINE; KATZEN FEDERICO; VOZZA-BROWN LAURA; LIFE TECHNOLOGIES CORP
摘要:Compositions, methods and kits for in vitro systems for synthesis of biomolecules such as polypeptides, are provided herein. Cell extracts that provide enhanced yields of soluble proteins using in vitro protein synthesis methods are provided. The invention also includes methods for producing high yields of proteins by the addition of a feeding solution that includes amino acids and an energy source to an ongoing in vitro synthesis system. The invention also includes methods of using a high-yield in vitro synthesis system to produce large quantities of proteins with incorporated labeled amino acids for analysis by methods such as by NMR. The invention further includes vectors for enhanced production of proteins from nucleic acid templates using in vitro synthesis systems.

专利号:US-7713446-B2
优先权日:2004-06-28
标 题:Synthesis of nanofibers of polyaniline and substituted derivatives
发明人：EPSTEIN ARTHUR J; CHIOU NAN-RONG
权利人:OHIO STATE UNIVERISTY
摘要:Novel, simple methods are presented directed to the synthesis of nanofibers of polyaniline and substituted derivatives. The production of these fibers is achieved via various methods by controlling the concentration of aniline monomer or substituted aniline derivatives or an oxidant in the reaction medium and maintaining said concentration at a level much lower than conventional polyaniline synthesis methods. Methods are disclosed relating to the use of a permeable membrane to control the release of a monomer and/or oxidant as well as a bulk polymerization method.

专利号:US-6767723-B2
优先权日:2000-04-27
标题 :Method for synthesis of nucleic acids
发明人：TONOIKE HIROSHI
权利人:SHIMADZU CORP
摘要:An object of the present invention is to provide a method of treatment and a method of storage that are useful in conducting a nucleic acid synthesis procedure capable of directly amplifying an intended nucleic acid in a living body-derived sample without purification steps.The present invention provides a method for synthesis of nucleic acids in which a living body-derived sample itself is mixed with a reaction solution for gene amplification and allowed to react, which method comprises treating the sample with a surfactant before the reaction to destruct solid components such as cells or bacterial bodies containing nucleic acids and uniformly disperse them in the sample liquid.

专利号:US-7485282-B2
优先权日:2004-03-26
标题 :Method for the preparation of metal oxides in nanometric particle form
发明人：PINNAVAIA THOMAS J; KIM SEONG-SU
权利人:UNIV MICHIGAN STATE
摘要:A process is described for the synthesis of metal oxides in a nanometric particle form that cannot be easily obtained by conventional bulk synthesis techniques. The method makes use of Colloid Occluded Carbons (COC) and Colloid Imprinted Carbons (CIC) as reagents and as templating agents for the preparation of metal oxides in nanometric particle form. The nanometric particles are suitable useful in the field of chemical catalysis, particularly for petroleum refining when in porous form, and as sensors, optical wave guides, and coatings.

专利号:WO-2025017286-A1
优先权日:2023-07-14
标 题 :Novel synthesis of colloidal quantum dot ink and applications in semiconductor devices
发明人：VASHISHTHA PARTH; HE XIN; MEHTA JOSHUA; LIU JUNPENG; VO CONG-DUAN
权利人:QUANTUM SCIENCE LTD
摘要:The present invention provides a method for producing a nanocrystal composition comprising an inorganic ligand via a one-pot synthesis. The present invention also provides nanocrystals comprising novel inorganic ligands and the use of these nanocrystals. The present invention further provides the use of the novel inorganic ligands in the preparation of nanocrystals.

专利号:WO-2024147019-A1
优先权日:2023-01-05
标题 :Scalable synthesis of iii-v nanocrystals
发明人：MEHTA JOSHUA; CHILUKA LAXMI KISHORE SAGAR
权利人:QUANTUM SCIENCE LTD
摘要:The present invention provides a scalable method for producing indium pnictogenide nanocrystals comprising forming a mixture comprising an indium-containing compound, a pnictogen precursor composition, a plurality of ligands and a non-polar solvent; heating the mixture from a first temperature to a second temperature in the range of 160 °C to 350 °C; and maintaining the mixture at the second temperature for a first predetermined length of time in the range of 1 second to 180 minutes.