AER 发表于 2025-3-26 21:57:22
Modification of Polymers Using Iodine Isocyanate. II. Improved Methods for Iodine Isocyanate Additins of polyisoprene. In this manner it is possible to react up to 100% of the double bonds in the polymer with iodine isocyanate. These iodoisocyanate derivatives can be converted to methyl iodocarbamate or iodourea derivatives of polyisoprene by reaction with methanol or ammonia, respectively. The s公式 发表于 2025-3-27 02:16:19
Sequence Studies during Reactions on Polymers, coworkers. These studies relied mainly on the kinetics of gross conversion during the reaction,since at this time no method for the quantitative evaluation of sequences of monomer units could be applied.palliative-care 发表于 2025-3-27 06:50:06
Some Problems in the Reactivity of Macromolecules,which differentiate the behavior and reactivity of units and functional groups attached to polymer chains from the behavior of low molecular weight species. These include the neighboring groups effect, the influence of microtacticity, conformational effects, the influence of electrostatic interactio血统 发表于 2025-3-27 10:03:24
http://reply.papertrans.cn/83/8219/821861/821861_34.png十字架 发表于 2025-3-27 14:56:46
Photochemical Reactions of Polymers in Solution,t compound, some influences of the polymer environment are often apparent. Reaction rates and quantum yields may be affected by restrictions in movements imposed by the molecular chains or by steric or shielding effects arising from chain coiling; for example, the quantum yield of a photochemical pr背信 发表于 2025-3-27 18:05:27
New Methods of Preparation of Tailor Made Polymer Networks,, as well as diffusion properties of small molecules in gels, and gel permeation chromatography phenomena have been largely investigated in many laboratories. However most of the experimental work was carried out on gels prepared either by polycondensation processes, or by radical copolymerization o壮观的游行 发表于 2025-3-27 23:49:26
Chemical and Biochemical Reactions in the Gel Phase,various bio-specific inhibitors, by conjugation with synthetic and semi-synthetic carriers. The resulting materials are of practical importance because they are recovered readily from heterogeneous reaction mixtures by filtration and, in certain cases, may be used continuously in perfused or fluidis防锈 发表于 2025-3-28 05:22:50
http://reply.papertrans.cn/83/8219/821861/821861_38.png收集 发表于 2025-3-28 09:32:38
,Application of Bender’s Salts to the Synthesis of Mercaptan — Containing Polymers,al scavengers, radiation prophylatics and polymeric catalysts has prompted a thorough investigation of potential synthetic techniques.. In contrast to vinyl alcohol, vinyl mercaptan can be isolated in very low yield from the addition of hydrogen sulfide to acetylene in the presence of light.. Howeveanus928 发表于 2025-3-28 12:27:56
Paraoxon Analogs as Haptens, was, until now, treated by pharmaceutical means only. We have decided to check whether prophylactic protection can be achieved in a completely different manner, i.e., by the use of parathion analogs as immunogens.