Stereospecific polymerization of allylbenzene
نویسندگان
چکیده
منابع مشابه
Stereospecific carbene polymerization with oxygenated Rh(diene) species.
Polymers bearing polar functionalities are important materials, since they exhibit beneficial properties with respect to adhesion, paint/printability and surface properties. Commercial synthesis of these materials is mainly based on radical processes, which (so far) only allow poor control over the stereochemistry of the resulting polymers. 2 ] Stereo-controlled polymerisation generally require...
متن کاملFrom the stereospecific polymerization to the asymmetric autocatalyt ic synthesis of macromolecules
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Trans-stereospecific polymerization of butadiene and random copolymerization with styrene using borohydrido neodymium/magnesium dialkyl catalysts
The combination of a neodymium borohydride, Nd(BH4)3(THF)3 (1) or Cp*Nd(BH4)2(THF)x (2), with MgBuEt (BEM), affords an efficient and highly selective (up to 96.7% 1,4-trans) catalyst for butadiene polymerization. In the presence of excesses of Mg co-catalyst, polymer chain transfer takes place between neodymium and magnesium, and significant amounts of 1,2-units are observed. When considered fo...
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Regioselective addition of aryl lithium to commercially available (S)-(+)-propylene oxide provides the corresponding (S)-aryl-2-propanol. The (R)-amphetamine is obtained by conversion of the alcohol to the tosylate followed by azide displacement and hydrogenation. Mitsunobu conversion of the alcohol to the (R)-bromide followed by azide displacement and hydrogenation affords the (S)-amphetamine....
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ژورنال
عنوان ژورنال: Journal of Polymer Science
سال: 1961
ISSN: 0022-3832,1542-6238
DOI: 10.1002/pol.1961.1205115634