作者: HEPA-filter 時(shí)間: 2025-3-21 22:38
High Vacuum Techniques for Anionic Polymerizationular architectures. Though HVTs require glassblowing skill for designing and making polymerization reactor, it is the best way to avoid any termination of living polymers during the number of steps for the synthesis of polymers with complex structure. In this chapter, we describe the different polym作者: AMEND 時(shí)間: 2025-3-22 01:41 作者: finale 時(shí)間: 2025-3-22 06:35 作者: 高貴領(lǐng)導(dǎo) 時(shí)間: 2025-3-22 11:46
Cyclic Monomers: Epoxides, Lactide, Lactones, Lactams, Cyclic Silicon-Containing Monomers, Cyclic Caring-opening mechanism. This chapter presents successively the polymerization of cyclic ethers, cyclic esters, cyclic amides, cyclosiloxanes and other cyclic silicon-based compounds, cyclic carbonates, and other cyclic monomers, i.e., cycloalkanes, cyclic sulfides, cyclic amines, cyclic ureas, depsi作者: OMIT 時(shí)間: 2025-3-22 14:44
Ring-Opening Polymerization of ,-Carboxyanhydrides for Preparation of Polypeptides and Polypeptide-Bd materials with various molecular architectures are described. An overview of polymerization mechanisms using conventional (various amines) as well as some recently developed initiators (hexamethyldisilazane, .-heterocyclic persistent carbenes, etc.) is presented, and their benefits and drawbacks f作者: dagger 時(shí)間: 2025-3-22 18:09 作者: 怕失去錢 時(shí)間: 2025-3-22 21:59
Poly(ferrocenylsilanes) with Controlled Macromolecular Architecture by Anionic Polymerization: Applilonging to the class of organometallic polymers, possess skeletal ferrocene and alkylsilane units which provide these solution-processable materials with a very high RIE resistance. First, it is shown that among the different paths for synthesizing PFS, anionic polymerization creates an opportunity 作者: lattice 時(shí)間: 2025-3-23 04:38 作者: thalamus 時(shí)間: 2025-3-23 09:17
Group Transfer Polymerization of Acrylic Monomers synthesis of acrylic polymers. In the GTP process, a silyl ketene acetal compound is used as an initiator and a Lewis base/acid as the catalysts, and polymerizations can be operated at advantageously moderate temperatures when compared with the conventional living anionic polymerizations of acrylic作者: 折磨 時(shí)間: 2025-3-23 12:58
Surface-Initiated Anionic Polymerization from Nanomaterialsication of nanomaterials using polymers is a unique way to reduce interface incompatibility of nanomaterials for applications in new technologies. The properties of nanomaterials strongly depend on their compatibility with organic phases either in bulk or in solution. This chapter focuses on surface作者: PET-scan 時(shí)間: 2025-3-23 15:19 作者: 蜈蚣 時(shí)間: 2025-3-23 19:56
Graft and Comblike Polymers quarter century. Grafting methods that utilize anionic polymerization techniques, which are reviewed in this chapter, provide strict control over backbone and side chain molecular weights, branch spacing, number of branch points, and branch point functionality in order to synthesize well-defined gr作者: acrophobia 時(shí)間: 2025-3-24 01:59
Star-Branched Polymers (Star Polymers)eviewed in this chapter. In particular, much attention is being devoted to the synthetic development of miktoarm star polymers since 2000. At the present time, the almost all types of multiarmed and multicomponent miktoarm star polymers have become feasible by using recently developed iterative stra作者: 注射器 時(shí)間: 2025-3-24 03:16 作者: 采納 時(shí)間: 2025-3-24 08:01
Complex Branched Polymersieved either by a divergent or by a convergent method. The synthesis of new anionic initiators, the use of linking agents and transformation reactions along the polymer chain are some of the means to achieve these complex architectures. Linear chains with a number of polymer chains covalently attach作者: CALL 時(shí)間: 2025-3-24 10:52 作者: 橢圓 時(shí)間: 2025-3-24 16:11 作者: 青春期 時(shí)間: 2025-3-24 20:29
International environmental problems,ular architectures. Though HVTs require glassblowing skill for designing and making polymerization reactor, it is the best way to avoid any termination of living polymers during the number of steps for the synthesis of polymers with complex structure. In this chapter, we describe the different polym作者: 粉筆 時(shí)間: 2025-3-25 01:53
Economics and policies in forestry,. Attention is first focused on the living anionic polymerization of functional styrene derivatives. With the finding of anion-stable functionalities and the successful development of two strategies using protective groups to mask the reactive functionalities and electron-withdrawing functional grou作者: effrontery 時(shí)間: 2025-3-25 06:44
International environmental problems,kylmethacrylamides, .-isopropylacrylamide, α-methylene-.-methylpyrrolidone, methacrylonitrile, vinyl sulfoxide, and benzofulvene, quantitatively proceeded and gave the polymers having predicted molecular weights and narrow molecular weight distributions. The effective anionic initiator systems were 作者: 雕鏤 時(shí)間: 2025-3-25 08:21 作者: 硬化 時(shí)間: 2025-3-25 14:59 作者: 死亡率 時(shí)間: 2025-3-25 18:05 作者: 看法等 時(shí)間: 2025-3-25 21:32
Economics and policies in forestry,longing to the class of organometallic polymers, possess skeletal ferrocene and alkylsilane units which provide these solution-processable materials with a very high RIE resistance. First, it is shown that among the different paths for synthesizing PFS, anionic polymerization creates an opportunity 作者: mercenary 時(shí)間: 2025-3-26 04:05
Agriculture and the environment,or the anionic polymerization of various types of monomers. Generally, the complexation of phosphazene base with the counterion (proton or lithium cation) significantly improves the nucleophilicity of the initiator/chain end resulting in highly enhanced polymerization rates, as compared with convent作者: 產(chǎn)生 時(shí)間: 2025-3-26 07:28 作者: Priapism 時(shí)間: 2025-3-26 10:08
Agriculture and the environment,ication of nanomaterials using polymers is a unique way to reduce interface incompatibility of nanomaterials for applications in new technologies. The properties of nanomaterials strongly depend on their compatibility with organic phases either in bulk or in solution. This chapter focuses on surface作者: 完整 時(shí)間: 2025-3-26 14:20 作者: 痛恨 時(shí)間: 2025-3-26 18:36
International environmental problems, quarter century. Grafting methods that utilize anionic polymerization techniques, which are reviewed in this chapter, provide strict control over backbone and side chain molecular weights, branch spacing, number of branch points, and branch point functionality in order to synthesize well-defined gr作者: 壁畫 時(shí)間: 2025-3-26 21:33
Renewable Energy Support Policy Design,eviewed in this chapter. In particular, much attention is being devoted to the synthetic development of miktoarm star polymers since 2000. At the present time, the almost all types of multiarmed and multicomponent miktoarm star polymers have become feasible by using recently developed iterative stra作者: GLOSS 時(shí)間: 2025-3-27 02:46
Cost Drivers and Technical Hurdles, multiple chains interconnected in a dendritic way. The synthetic strategies include divergent and convergent methods, as those for regular dendrimers, in combination with the preparation of the polymer chains either in situ or in separate batches. The divergent approach usually starts from a core w作者: 與野獸博斗者 時(shí)間: 2025-3-27 07:47
Mathematics for Reading Later Chapters,ieved either by a divergent or by a convergent method. The synthesis of new anionic initiators, the use of linking agents and transformation reactions along the polymer chain are some of the means to achieve these complex architectures. Linear chains with a number of polymer chains covalently attach作者: Progesterone 時(shí)間: 2025-3-27 13:28 作者: Ambiguous 時(shí)間: 2025-3-27 14:46
https://doi.org/10.1007/978-4-431-54186-8Anionic Polymerization; Block Copolymers; Complex Macromolecular Architectures; Cyclic Monomers; Morphol作者: 吹牛需要藝術(shù) 時(shí)間: 2025-3-27 20:28 作者: 吹牛大王 時(shí)間: 2025-3-27 23:49
http://image.papertrans.cn/a/image/157762.jpg作者: 就職 時(shí)間: 2025-3-28 03:24
onditions) and consequently the only one with unique capabilities in the synthesis of well-defined (i.e., precisely controlled molecular weight, nearly mono-disperse molecular weight distribution, structural an978-4-431-56126-2978-4-431-54186-8作者: 坦白 時(shí)間: 2025-3-28 08:08
Schlenk Techniques for Anionic Polymerizationhlenk apparatus (manifolds, connections, purification/storage flasks, reactors, etc.), the use of small supplementary devices (soft tubing, cannulas, stopcocks, etc.) and experimental procedures. The operational methods are partly purpose-oriented while also featured by a high flexibility, which mak作者: PAD416 時(shí)間: 2025-3-28 14:12 作者: 祖?zhèn)?nbsp; 時(shí)間: 2025-3-28 14:48 作者: Indigence 時(shí)間: 2025-3-28 19:27 作者: arabesque 時(shí)間: 2025-3-29 00:43
Synthesis of Dendrimer-Like Polymersinto living anion in an alternating way. The latter suffers from more serious steric hindrance than the former. A variety of dendrimer-like polymers, such as poly(ethylene oxide) (PEO), polystyrene (PS), poly(meth)acrylates, polycaprolactone (PCL), and their related copolymers, have been reported in作者: MERIT 時(shí)間: 2025-3-29 04:07 作者: 無聊點(diǎn)好 時(shí)間: 2025-3-29 10:36
Block Copolymers Containing Polythiophene Segmentsesearchers and their unique self-assembly behavior has been studied in detail. Due to the rigidity/crystallinity of polythiophene segments in addition to the heterophase structure, the self-assembly behavior of such BCPs becomes rather more complicated than that of conventional coil-based BCPs. Neve作者: Formidable 時(shí)間: 2025-3-29 11:37
Sabiou M. Inoua,Vernon L. Smithhlenk apparatus (manifolds, connections, purification/storage flasks, reactors, etc.), the use of small supplementary devices (soft tubing, cannulas, stopcocks, etc.) and experimental procedures. The operational methods are partly purpose-oriented while also featured by a high flexibility, which mak作者: 寬大 時(shí)間: 2025-3-29 17:28 作者: dagger 時(shí)間: 2025-3-29 20:17
Economics and policies in forestry,structures, are demonstrated. Finally, phase separation of PFS block copolymers and their use as self-assembled resists with long-range guided order in nanolithography is discussed. With this technique, various nanopatterns useful for CMOS design could be obtained.作者: 山崩 時(shí)間: 2025-3-30 03:48
Economics and policies in fisheries,had also been discussed. In contrast to the conventional GTP, the recent progress (2007~) in this field has been mainly reflected on the significant and creative utilization of organocatalysts, such as strong organic Lewis acids/bases, which might be termed as organocatalytic GTP. This subchapter st作者: Platelet 時(shí)間: 2025-3-30 05:39
Cost Drivers and Technical Hurdles,into living anion in an alternating way. The latter suffers from more serious steric hindrance than the former. A variety of dendrimer-like polymers, such as poly(ethylene oxide) (PEO), polystyrene (PS), poly(meth)acrylates, polycaprolactone (PCL), and their related copolymers, have been reported in作者: 起草 時(shí)間: 2025-3-30 10:51 作者: WAX 時(shí)間: 2025-3-30 12:51
Kiyohiko G. Nishimura,Hiroyuki Ozakiesearchers and their unique self-assembly behavior has been studied in detail. Due to the rigidity/crystallinity of polythiophene segments in addition to the heterophase structure, the self-assembly behavior of such BCPs becomes rather more complicated than that of conventional coil-based BCPs. Neve作者: peritonitis 時(shí)間: 2025-3-30 16:48
Book 2015be the only truly living polymerization system (100 % termination free under appropriate conditions) and consequently the only one with unique capabilities in the synthesis of well-defined (i.e., precisely controlled molecular weight, nearly mono-disperse molecular weight distribution, structural an作者: Adornment 時(shí)間: 2025-3-30 23:40
Economics and policies in forestry,cromolecular architectures. Ring-opening polymerization of cyclic monomers utilizing alkali metal derivatives or other initiating systems in conjunction or not with activating systems is described. Emphasis is also put on the use of organic initiators or catalysts to trigger the metal-free ring-opening polymerization.作者: 外露 時(shí)間: 2025-3-31 01:16
Cyclic Monomers: Epoxides, Lactide, Lactones, Lactams, Cyclic Silicon-Containing Monomers, Cyclic Cacromolecular architectures. Ring-opening polymerization of cyclic monomers utilizing alkali metal derivatives or other initiating systems in conjunction or not with activating systems is described. Emphasis is also put on the use of organic initiators or catalysts to trigger the metal-free ring-opening polymerization.作者: LITHE 時(shí)間: 2025-3-31 06:46 作者: 殘廢的火焰 時(shí)間: 2025-3-31 11:52 作者: circuit 時(shí)間: 2025-3-31 14:45
Surface-Initiated Anionic Polymerization from Nanomaterials properties of nanomaterials strongly depend on their compatibility with organic phases either in bulk or in solution. This chapter focuses on surface grafting of polymers using living anionic polymerization from various nanomaterials and provides accounts on the developments in this area.作者: HIKE 時(shí)間: 2025-3-31 18:22 作者: custody 時(shí)間: 2025-4-1 01:35 作者: 抵押貸款 時(shí)間: 2025-4-1 05:48
Agriculture and the environment,1,3-cyclohexadiene, isocyanates, metal-containing monomers, etc. Recent advances regarding the synthesis of linear block copolymers (e.g., AB diblocks, ABA and ABC triblocks, ABCD tetrablocks, (AB). multiblocks) will be presented in this chapter.
