Poly-p-phenylene terephthamide (PPTA) polymer washing and solvent recovery method本发明提供一种聚对苯二甲酰对苯二胺(PPTA)聚合物洗涤及溶剂回收方法,先利用脂肪族卤代烷烃洗涤对位芳纶聚合产物,然后再水洗的方法,将NMP和部分氯化钙从PPTA聚合物中分离出来,然后用水洗涤PPTA聚合物,得到高纯度的PPTA树脂,具有...
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Poly-N-Para-Vinylbenzyl-Lactonamide Poly-Para-Phenylene Poly-Paraphenylene Terephthalamide Poly-Paraphenylene-2 6-Benzobisoxazole Poly-Picosatellite Orbital Deployer Poly-Propylene Glycol Poly-Ribitol Phosphate Poly-si Poly-Silicon Assisted Self-Aligned Selective-Epitaxial-Growth ...
Poly-N-Para-Vinylbenzyl-Lactonamide Poly-Para-Phenylene Poly-Paraphenylene Terephthalamide Poly-Paraphenylene-2 6-Benzobisoxazole Poly-Picosatellite Orbital Deployer Poly-Propylene Glycol Poly-Ribitol Phosphate Poly-si Poly-Silicon Assisted Self-Aligned Selective-Epitaxial-Growth Poly-Styrene Latex Poly-Thi...
The chlorinated poly(p-phenylene terephthamide) solution is synthesized from 2-chloro-p-phenylenediamine and paraphthaloyl chloride which are used as monomers, and directly undergoes wet spinning to prepare the polychlorinated poly(p-phenylene terephthalamide) nascent fibers, and the nascent fibers ...
Poly-N-Para-Vinylbenzyl-Lactonamide Poly-Para-Phenylene Poly-Paraphenylene Terephthalamide Poly-Paraphenylene-2 6-Benzobisoxazole Poly-Picosatellite Orbital Deployer Poly-Propylene Glycol Poly-Ribitol Phosphate Poly-si Poly-Silicon Assisted Self-Aligned Selective-Epitaxial-Growth Poly-Styrene Latex Poly-Thi...
IV. A novel synthesis of sulfonated poly(para-phenyleneterephthalamide): Polymerization of terephthalic acid and para-phenylenediamine... form highly anisotropic (liquid crystalline) sulfonated poly(p-phenyleneterephthalamide) (SPT) solutions (dopes) with inherent viscosities as high as 1.6... FM ...
(PMDI, a brown liquid composed of approximately 50% methylene diisocyanate with the remainder comprised of oligomers of MDI), carbodimide-modified liquid 4,4′-diphenylmethane diisocyanate, para-phenylene diisocyanate (PPDI), meta-phenylene diisocyanate (MPDI), triphenylmethane-4,4′-, and triphenyl...
of Tokyo, Japan, and is made from copoly(p-phenylene/3,4′diphenyl ester terephthalamide), is considered a para-aramid fiber. In some embodiments polyazole fibers can be used as the textile fiber in the blend. For example, suitable polyazoles include polybenzazoles, polypyridazoles, and...
Poly-N-Para-Vinylbenzyl-Lactonamide Poly-Para-Phenylene Poly-Paraphenylene Terephthalamide Poly-Paraphenylene-2 6-Benzobisoxazole Poly-Picosatellite Orbital Deployer Poly-Propylene Glycol Poly-Ribitol Phosphate Poly-si Poly-Silicon Assisted Self-Aligned Selective-Epitaxial-Growth ▼Complete...