helical polymersA series of novel polyisocyanide- graft -polystyrenes and polyisocyanide- graft -[polystyrene- block -poly(butyl acrylate)]s were synthesized through the grafting-through and grafting-from routes with two types of living polymerization techniques: polymerization with the Pd–Pt μ-...
Two types of coordination polymers based on cluster anions [Re4Q4(CN)12]4?(Q = S, Se) and cations of rare-earth metals Ln3+: Syntheses and crystal structuresOlga A. Efremova, Yuri V. Mironov⇑, Natalia V. Kuratieva, Vladimir E. FedorovNikolaev Institute of Inorganic Chemistry, Siberian...
31. Multi-layer film comprising at least one film according to claim 27 and one layer of polylactic acid or other polyester or destructured or non-destructured starch and its blends with synthetic and natural polymers said multi-layer film possibly comprising a layer of aluminium and other mater...
They are more or less intimate mixtures of two or more distinct crosslinked polymers with no covalent bonds between the polymers. T... HL Frisch,D Klempner,HK Yoon,... - 《Macromolecules》 被引量: 154发表: 1980年 Fracture Resistance of Polyblends and Polyblend Matrix Composites: Part II ...
productsoftwotypesofnitrouspolymerswereobtainedf而mGA/T506-2004testsandusedforⅣ一Ga8Moddcalculations.Comparingthere8ult8oftheanimalmodelwiththeⅣ·Gasvalue,showstllatthethemaldecompositio“productsofpolyacrylonitrilearefarmoretoxicthanthethe珊aldecompositionproductsofwoolcarpet.T8kingnoaccountofN02,whentheⅣ-...
Rheological behavior of dispersed two-phase polymer melts has been investigated by means of a capillary rheometer. The two-phase systems chosen for study were blends of two polymers: high-density polyethylene and polystyrene, which are incompatible in the molten state. In order to investigate the ...
Dense star polymers having terminal group densities greater than conventional extended star polymers exhibit greater and more uniform reactivity than their corresponding conventional star polymers. Fo
The chemistry of the reactions and polymers produced by these two types of agents are significantly different and the agents are not generally considered equivalents in the polymerization art. Wada et al, also discloses that heat is required to decompose their blowing agents. Watanbe et al., ...
Organo-silicon-rich layer 18 is formed on the surface of polymeric layer 16. Organo-silicon compounds typically have lower surface energies than other polymers, such as polyimides. The surface energy of poly-di-methyl siloxane (about 24 dynes/cm), for example, is lower than that of polyimide...
closely ap- proaching a-helices.1- 3 Measurements of the dielectric dispersion of such polymers in dilute solution1 show that the average angle between the two helices, e, is a little larger than 90°, which can be explained by considering the electrostatic interaction be- tween the two ...