標(biāo)題: Titlebook: Block Polymers; Proceedings of the S S. L. Aggarwal (Manager) Conference proceedings 1970 Plenum Press, New York 1970 polymer.polymer chemi [打印本頁(yè)] 作者: Harrison 時(shí)間: 2025-3-21 16:08
書(shū)目名稱Block Polymers影響因子(影響力)
作者: Malaise 時(shí)間: 2025-3-21 22:58
Block Copolymers of Styrene and Isoprene: Experimental Design and Product Analysis,ashion, by adding each monomer in turn to the polymerization system. To produce block co-polymers as free as possible of partial polymerization products and with each block quite monodisperse requires careful planning and rigorous purification techniques. Kinetic studies made on anionic polymerizati作者: Jingoism 時(shí)間: 2025-3-22 01:01 作者: precede 時(shí)間: 2025-3-22 06:54 作者: grotto 時(shí)間: 2025-3-22 12:35
Multiple Glass Transitions of Block Polymers. II. Differential Scanning Calorimetry of Styrene-Dieners which exhibited narrow molecular weight distributions and sharp block segments.. The two phase nature of the styrene-diene block copolymers was evident from two distinct glass transitions (Tg) associated with the individual segment types. We now report the application of differential scanning ca作者: COLIC 時(shí)間: 2025-3-22 14:30 作者: Endearing 時(shí)間: 2025-3-22 20:27 作者: ear-canal 時(shí)間: 2025-3-23 00:36 作者: Monotonous 時(shí)間: 2025-3-23 02:00
Time-Dependent Mechanical Properties of Elastomeric Block Polymers in Large Tensile Deformations,olymer at temperatures from ?40 to 60°C. It is concluded that the time dependence of their mechanical properties and also their high tensile strengths result from energy dissipation associated with the plastic deformation, and eventual disruption, of the colloidal polystyrene domains. A similar mech作者: 灰姑娘 時(shí)間: 2025-3-23 06:20
An Alpha-Methylstyrene Isoprene Block Copolymer,ers were found to be two phase systems, with two glass transition temperatures and with properties closely resembling those of crosslinked filled elastomers. The two glass transition temperatures are almost identical with those of the individual blocks, i.e., ?80 and +90°C. Above the glass transitio作者: evaculate 時(shí)間: 2025-3-23 11:00 作者: finite 時(shí)間: 2025-3-23 16:59
The Effects of Preferential Solvents on the Phase Separation Morphology of Styrene-Ethylene Oxide B the morphology of block copolymers of poly(ethylene oxide) (PEO) and polystyrene (PS) as well as poly (propylene oxide) and PS, in concentrated solutions using small angle x-ray techniques. By varying both concentration and solvent type, they were able to create several interesting gel structures. 作者: VEST 時(shí)間: 2025-3-23 21:32 作者: 使苦惱 時(shí)間: 2025-3-24 00:09
Segmented Polyurethanes: Properties as a Function of Segment Size and Distribution,ristic of crosslinked elastomers over a wide temperature range but, at higher temperatures, melt and can be processed by techniques used for plastics and fibers(1). This behavior is explained by the fact that the polymers possess a three-dimensional network built up by intermolecular association (cr作者: Ganglion 時(shí)間: 2025-3-24 04:00
Mechanical and Optical Properties of Block Polymers II. Polyether Urethanes,tion. Typically, an elastomeric block polymer is built of alternate segments of a glassy or rigid polymer and a rubbery polymer resulting in a material which is more flexible than the pure rigid polymer, but possessing a higher modulus than the pure rubbery segment. The intelligent design of block p作者: 比喻好 時(shí)間: 2025-3-24 06:48 作者: 含水層 時(shí)間: 2025-3-24 14:03 作者: 急急忙忙 時(shí)間: 2025-3-24 14:57
Structure and Properties of Alternating Block Polymers of Dimethylsiloxane and Bisphenol-A Carbonature exists on the scale of 10. A ca.. Many physical properties of these systems are well known to differfrom those of their random-copolymerized counterparts because of this structure. Block polymers of dimethylsiloxane and bisphenol-A carbonate have been synthesized by H. A. Vaughn.which exhibit ph作者: 性別 時(shí)間: 2025-3-24 19:49
Wavelets in 1989 : An extended summary,on of low molecular weight polystyrene adds further reinforcement. (For example, this addition to a SBS polymer of 30 wt. % styrene to give an overall composition of 40 wt. % styrene increased the modulus at an extension ratio of 5 from 23 to 44 kg. /cm.. at a strain rate of 31.5 min..)作者: 不整齊 時(shí)間: 2025-3-25 01:52 作者: Paleontology 時(shí)間: 2025-3-25 04:26 作者: 笨拙處理 時(shí)間: 2025-3-25 09:23 作者: 都相信我的話 時(shí)間: 2025-3-25 12:08
978-1-4684-1844-6Plenum Press, New York 1970作者: 難取悅 時(shí)間: 2025-3-25 18:10 作者: Accomplish 時(shí)間: 2025-3-25 20:41 作者: 狂亂 時(shí)間: 2025-3-26 03:52 作者: 大猩猩 時(shí)間: 2025-3-26 05:43
Wavelets in 1989 : An extended summary,on of low molecular weight polystyrene adds further reinforcement. (For example, this addition to a SBS polymer of 30 wt. % styrene to give an overall composition of 40 wt. % styrene increased the modulus at an extension ratio of 5 from 23 to 44 kg. /cm.. at a strain rate of 31.5 min..)作者: Lymphocyte 時(shí)間: 2025-3-26 08:38 作者: 總 時(shí)間: 2025-3-26 14:10 作者: meretricious 時(shí)間: 2025-3-26 20:39
https://doi.org/10.1007/978-1-4899-6389-5olecules of a higher order. They are more complex than molecules of either homopolymers or random copolymers, and they are more difficult to synthesize in a well-defined form, but they have also many properties which cannot be found in homopolymers or random copolymers. If the different sequences of作者: Ingest 時(shí)間: 2025-3-27 00:35
https://doi.org/10.1007/978-2-287-79929-7al mechanical behaviour in exhibiting long range rubber elasticity without the necessity for chemical crosslinking.. Commercial materials in which a block of rubber is embedded between two blocks of a glassy material, such as polystyrene, to give a two-phase “domain” structure have been widely inves作者: Optimum 時(shí)間: 2025-3-27 02:01
https://doi.org/10.1007/978-2-8178-0247-3olymer at temperatures from ?40 to 60°C. It is concluded that the time dependence of their mechanical properties and also their high tensile strengths result from energy dissipation associated with the plastic deformation, and eventual disruption, of the colloidal polystyrene domains. A similar mech作者: 顛簸下上 時(shí)間: 2025-3-27 09:15
Yann-érick Claessens,Patrick Rayers were found to be two phase systems, with two glass transition temperatures and with properties closely resembling those of crosslinked filled elastomers. The two glass transition temperatures are almost identical with those of the individual blocks, i.e., ?80 and +90°C. Above the glass transitio作者: Essential 時(shí)間: 2025-3-27 11:21 作者: Licentious 時(shí)間: 2025-3-27 14:09 作者: FISC 時(shí)間: 2025-3-27 20:07 作者: Thymus 時(shí)間: 2025-3-28 01:52
https://doi.org/10.1007/978-2-8178-0297-8ristic of crosslinked elastomers over a wide temperature range but, at higher temperatures, melt and can be processed by techniques used for plastics and fibers(1). This behavior is explained by the fact that the polymers possess a three-dimensional network built up by intermolecular association (cr作者: 演繹 時(shí)間: 2025-3-28 03:33
Yann-érick Claessens,Patrick Raytion. Typically, an elastomeric block polymer is built of alternate segments of a glassy or rigid polymer and a rubbery polymer resulting in a material which is more flexible than the pure rigid polymer, but possessing a higher modulus than the pure rubbery segment. The intelligent design of block p作者: Extricate 時(shí)間: 2025-3-28 07:21 作者: Emg827 時(shí)間: 2025-3-28 10:54 作者: Increment 時(shí)間: 2025-3-28 18:15 作者: 骨 時(shí)間: 2025-3-28 22:08
http://image.papertrans.cn/b/image/189165.jpg作者: Dissonance 時(shí)間: 2025-3-29 02:06 作者: Neuralgia 時(shí)間: 2025-3-29 06:36
Conference proceedings 1970ially for this book to achieve the most up-to-date account of the advances that have been made since the development of the thermoplastic elastomers that first brought into focus this important area of research. The first two papers in this volume draw attention to the various problems that should b作者: Alpha-Cells 時(shí)間: 2025-3-29 09:58 作者: CUMB 時(shí)間: 2025-3-29 14:05
Colloidal and Morphological Behavior of Block and Graft Copolymers,her in homopolymers nor in random copolymers. These properties are a result of the composite nature of the block or graft copolymer molecules which permit not only interactions between the polymer chains and the environment, e.g. the solvent when in a solution, but also interactions between the diff作者: NICE 時(shí)間: 2025-3-29 18:51 作者: bifurcate 時(shí)間: 2025-3-29 22:34
The Effects of Preferential Solvents on the Phase Separation Morphology of Styrene-Ethylene Oxide B, the cylinder and the lamella, were identified from small angle x-ray data. More recently, Kovacs et al (7–9) have studied single crystals of PS-PEO AB type blocks and have shown that PEO crystallizes with little interference from the glass forming PS in dilute solution experiments. They also indic作者: Insatiable 時(shí)間: 2025-3-30 00:18 作者: rods366 時(shí)間: 2025-3-30 06:27 作者: choleretic 時(shí)間: 2025-3-30 10:50
https://doi.org/10.1007/978-2-8178-0297-8, the cylinder and the lamella, were identified from small angle x-ray data. More recently, Kovacs et al (7–9) have studied single crystals of PS-PEO AB type blocks and have shown that PEO crystallizes with little interference from the glass forming PS in dilute solution experiments. They also indic作者: ELUC 時(shí)間: 2025-3-30 12:24
Studies on Domain Formation Mechanism of A-B Type Block Copolymer from its Solution,ter of the dynamic modulus-temperature relation including the high-elasticity, have been explained in terms of a two- phase structure originating from the microphase separation of the block segments into respective domains (1–12).作者: 暫停,間歇 時(shí)間: 2025-3-30 18:15 作者: 小鹿 時(shí)間: 2025-3-30 23:11
allowed the preparation of polymers in which the stereo- and geometric isomerism of the monomer units could be con- trolled have indeed been among the major developments in polymer science during the last decade. The synthesis of block polymers, in which the sequence length of the comonomer units c作者: 有發(fā)明天才 時(shí)間: 2025-3-31 01:02
https://doi.org/10.1007/BFb0028912se linear polymers show similar behavior to that of crosslinked networks, presumably due to the fact that the polystyrene end blocks aggregate into “domains”, because of their incompatibility with the polydiene, and these glassy domains can act as “network” junctions at ambient temperatures.作者: Mast-Cell 時(shí)間: 2025-3-31 06:35 作者: Kidney-Failure 時(shí)間: 2025-3-31 12:36
Introduction a la theorie des ondelettes,ident from two distinct glass transitions (Tg) associated with the individual segment types. We now report the application of differential scanning calorimetry (DSC) to investigate the multiple Tg behavior of these block copolymers.作者: 威脅你 時(shí)間: 2025-3-31 14:03 作者: 行業(yè) 時(shí)間: 2025-3-31 20:45 作者: FLUSH 時(shí)間: 2025-4-1 00:52
