Mortar
发表于 2025-3-30 08:18:26
n atoms. This structure gives them a unique combination of properties that hold great interest for a host of practical applications. Although they have been known and manufactured for many years, their applications continue to expand rapidly and this boosts progress in the generation of new and modi
CYN
发表于 2025-3-30 13:22:36
Polycarbosilanespropriately substituted, and difunctional organic groups which bridge the silicon atoms’ , and, for carbosilanes in general, ‘compounds in which the elements carbon and silicon occupy alternate positions in the molecular framework’ .
Commonwealth
发表于 2025-3-30 18:18:24
Synthesis of Polysilanes by the Wurtz Reductive-Coupling ReactionChapter, most polysilanes, like poly(diphenylsilane) which was first prepared more than 75 years ago by Kipping , have been synthesised by the condensation of the corresponding dichlorodiorganosilane using dispersed alkali metal, usually sodium, i.e. using the Wurtz-type reductive dehalogenation reaction shown in Scheme 1 .
Axillary
发表于 2025-3-31 00:00:56
Synthesis of Polysilanes by New Procedures: Part 1 Ring-Opening Polymerisations and the Polymerisatipplications show that polysilanes are promising as advanced materials for the high technologies of the next generation. However, there are still several problems to be solved for further development of the chemistry and physics of polysilanes. One such problem concerns the limited methods available for the synthesis polysilanes.
JIBE
发表于 2025-3-31 01:56:38
Synthesis of Linear Polysiloxanes area was expanding particularly fast during the 25-years period, beginning with the dawn of industrial production of silicones in the late 1940s. At that time, the basic knowledge on the reactions leading to polysiloxanes was founded. That research is comprehensively accounted for in a number of ea
CIS
发表于 2025-3-31 07:56:32
Organosiloxane Block and Graft Copolymersthe physico-chemical and thermo-mechanical properties and processibility to obtain new engineering materials. The case of silicon-containing block and graft copolymers is particularly interesting because of the unique properties of polysiloxanes. Their exceptional properties (very low glass transiti
TOM
发表于 2025-3-31 09:25:01
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dearth
发表于 2025-3-31 17:26:12
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粗鄙的人
发表于 2025-3-31 21:03:17
Preparation and Properties of Silicone Elastomers, (PDMS) -[(CH.).SiO] . —. The polysiloxane or silicone industry may be conveniently grouped into products based upon fluids (which may or may not contain functional groups), cross-linked elastomers and resins. In our day-to-day life we encounter silicone elastomers in applications ranging from
山羊
发表于 2025-3-31 21:44:01
Polysilsesquioxanesoiety. The carbon moiety can contain another silsesquioxane structure to form the so-called bridging class of silsesquioxanes. It can be an aryl or alkyl fragment with or without unsaturation and it can contain functionality such as amino groups or epoxy groups. In the field of silicone science a sh