The polymerizations of vinyl ethers with a tricyclodecane or tricyclodecene unit (1, 2, and 3) with the HCl/ZnCl2 initiating system in toluene at −30 °C proceeded in a living manner to give high ...molecular‐weight polymers with controlled molecular weights and narrow molecular weight distributions. The Tg's of poly(1) and poly(2) reached ∼100 °C, whereas the Tg of poly(3) was lower than those of poly(1) and poly(2), but still much higher than room temperature. These results show that the rigid tricyclic groups in the side chains effectively elevate the Tg of poly(vinyl ethers)s.
The systematics and affinities of species that have previously been assigned to the terebratelloid brachiopod genus Stethothyris Thomson, 1918, are reappraised and the taxonomic composition of the ...Subfamily Stethothyridinae is re-evaluated. Only the type species (S. uttleyi) is retained within the genus Stethothyris. The remainder are now distributed among the new genera, Erihadrosia (E. epsilon) from New Zealand, and Epacrothyris (E. pectoralis, E. sufflata) from Australia, and Aliquantula Richardson, 1991 (A. insolita, A. tapirina). One new species (Epacrothyris rennisonae) from the Abel Head Formation, Northwest Nelson, New Zealand, is described. All but Erihadrosia are included in the Subfamily Stethothyridinae.
Six other related teloform loop-bearing genera, which are also assigned to the Subfamily Stethothyridinae, are redescribed. These are Austrothyris Allan, 1939, Cudmorella Allan, 1939, Elderra Richardson, 1991, Pilkena Richardson, 1991, and Rhizothyris Thomson, 1915. The Paleocene to early Eocene (Teurian-Waipawan) species Campages chathamensis Allan, 1932 is assigned to a new genus, Tioriorithyris, which is considered the likely basal stock from which later Stethothyridinae evolved.
Provider: - Institution: - Data provided by Europeana Collections- Fotografija prikazuje knjigo Literarni klub 1939-1941, ki sta jo napisala in izdala Jože Dular in Jože Kastelic ob šestdesetletnici ...ustanovitve kluba. Knjiga je bila izdana 1999, natisnil jo je ADOZ tisk d.o.o. Kranj.- All metadata published by Europeana are available free of restriction under the Creative Commons CC0 1.0 Universal Public Domain Dedication. However, Europeana requests that you actively acknowledge and give attribution to all metadata sources including Europeana
Provider: - Institution: - Data provided by Europeana Collections- Portret van predikant Charles le Cene. Hij maakte een Bijbelvertaling in het Frans.- All metadata published by Europeana are ...available free of restriction under the Creative Commons CC0 1.0 Universal Public Domain Dedication. However, Europeana requests that you actively acknowledge and give attribution to all metadata sources including Europeana
Provider: - Institution: - Data provided by Europeana Collections- Portret van predikant Charles le Cene. Hij maakte een Bijbelvertaling in het Frans.- All metadata published by Europeana are ...available free of restriction under the Creative Commons CC0 1.0 Universal Public Domain Dedication. However, Europeana requests that you actively acknowledge and give attribution to all metadata sources including Europeana
Provider: - Institution: $descSource_2_facet - Data provided by Europeana Collections- All metadata published by Europeana are available free of restriction under the Creative Commons CC0 1.0 ...Universal Public Domain Dedication. However, Europeana requests that you actively acknowledge and give attribution to all metadata sources including Europeana
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