Self-diffusion coefficient of hexamethyl-cyclotrisiloxaneThis chapter provides Self-diffusion coefficient of hexamethyl-cyclotrisiloxane at various temperature and pressure conditions measured using NMR spin echo pulse gradient.doi:10.1007/978-3-540-73735-3_176Jochen Winkelmann...
以六苯基环三硅氮烷三锂盐和六甲基环三硅氧烷(D3)为原料,制备了环硅氧烷聚合反应引发剂“种子溶液”,并用29SiNMR对其结构进行了表征;用“种子溶液”与聚合反应促进剂四氢呋喃或二甲基亚砜协同引发了D3或八甲基环四硅氧烷(D4)的聚合反应,并通过1HNMR、29SiNMR、13CNMR及IR谱对聚合物的结构进行了表征。
The 19 F-NMR spectra of VI and VII are consistent with the proposed isomeric structures.doi:10.1023/A:1021433520992M. ZeldinP. MehtaKluwer Academic Publishers-Plenum PublishersJournal of Inorganic and Organometallic PolymersRing-Opening Reaction of Hexamethylcyclotrisiloxane with Tetrachlorosilane and ...
(P_3~ NLi ),in the presence of DMSO or THF as a promoter was studied.The conversion of D_3 at different reaction time was determined from the ratio of the peak area of the NMR spectrum of D_3 to that of the polymer.The reaction orders for THF,DMSO,D_3 and P_3~ NLi were ...
以六苯基环三硅氮烷三锂盐和六甲基环三硅氧烷(D3)为原料,制备了环硅氧烷聚合反应引发剂“种子溶液”,并用29SiNMR对其结构进行了表征;用“种子溶液”与聚合反应促进剂四氢呋喃或二甲基亚砜协同引发了D3或八甲基环四硅氧烷(D4)的聚合反应,并通过1HNMR、29SiNMR、13CNMR及IR谱对聚合物的结构进行了表征。
以六苯基环三硅氮烷三锂盐和六甲基环三硅氧烷(D3)为原料,制备了环硅氧烷聚合反应引发剂“种子溶液”,并用29SiNMR对其结构进行了表征;用“种子溶液”与聚合反应促进剂四氢呋喃或二甲基亚砜协同引发了D3或八甲基环四硅氧烷(D4)的聚合反应,并通过1HNMR、29SiNMR、13CNMR及IR谱对聚合物的结构进行了表征。3...