A mass production method of fabricating a porous structure, microcellular injection molding, was combined with chemical foaming and particulate leaching methods to fabricate an interconnected porous structure made of poly(s-caprolactone) (PCL). Sodium bicarbonate (SB) was employed as the chemical ...
Structure and mechanical properties of poly(lactic acid) filled with (starch nanocrystal)-graft-poly(e-caprolactone) 来自 Semantic Scholar 喜欢 0 阅读量: 89 作者:J Yu,F Ai,A Dufresne,S Gao,H Jin,PR Chang 摘要: Poly(-caprolactone) (PCL) was grafted to the surface of starch nanocrystals (...
Based on the structure analysis indicate that polymerization of 2,2-dimethyl-1,3-propandiol and e-caprolactone monomers produced polymers with various molecular weights, which depend on the ratio of e-caprolactone / 2,2-dimethyl-1,3-propandiol used in polymerization. The reactivity of CL monomer...
Japan (Received March 18, 1991) ABSTRACT: Ringed spherulites were found in binary blends of poly(e-caprolactone) (PCL) and e-caprolactone-butadiene diblock copolymer (PCL-b-PB), while the regularly banded structure could not be observed in an oligomeric blend of PCL and polybutadiene (PB)....
In the solid state, complexes 1-3 were isolated as racemic mixtures in which each stereoisomer adopts a tetrahedral structure with the bpzmp ligand kappa(2)-coordinated to the metal via the phenoxy group and the imino nitrogen of one of pyrazolyl rings. The investigation of the solution ...
Zinc complexes supported by maltolato ligands: synthesis, structure, solution behavior, and application in ring-opening polymerization of lactides. Organometallics 31, 4755–4762 (2012). 12 Chen, H. L., Chuang, H. J., Huang, B. H. & Lin, C. C. Inorg. ring-opening polymerization of e-...
The comparison, based on the structure of the initiator and on the polymerization features (molar mass, molar mass distribution, side reactions) reveals some differences especially in the number of active polymer chains per metal and in the occurrence of some transfer reactions with Ln(BH4)3(THF...
Effect of annealing temperature on structure development was also monitored using FTIR and DSC. It was found that Crystallinity substantially increased with increasing annealing temperature (T). FTIR spectroscopic observation showed that the band at 1725 cmincreased in intensity while the band at 1736 ...
The structure and properties of the waterborne polyurethanes were characterized by IR, particle size analysis and tensile tests. It was found that with increasing LDMPA content, the particle size of the waterborne polyurethane emulsion decreased. The results of tensile tests showed that with ...
Synthesis, crystal structure and solution behavior of a novel tetranuclear Zn(II) Schiff base complex The tetranuclear Zn(II) Schiff base complex [Mg(H 2O) 6][{Zn 2L 1(CH 3CO 2)} 2(μ 3-OH) 2]·6H 2O (H 3L 1=Schiff base derived from 2,6-diformyl-4-methylphe... J Hermann...