Die Erfindung betrifft Polymer-Mischungen und Verfahren zu ihrer Herstellung. Dabei wird in der Schmelze einer Komponente A, die aus einem oder mehreren thermoplastischen Polymeren besteht, die Komponente B umgesetzt. Die Komponente B besteht aus einer oder mehreren Verbindungen mit der Struktur
Die Umsetzung der Komponente B in Komponente A erfolgt zu linearen, verzweigten oder vernetzten, hoch- oder niedermolekularen Polymeren. In der Struktur von B ist X = NH₂, OH oder ein N-substituiertes, mit einem Elektronen ziehenden Substituenten Y aktiviertes Lactam vom Typ
Y = CO, SO₂, R⁵P=O; R¹, R², R⁴ sind zwei- oder mehrwertige aliphatische, aromatische, heterocyclische oder heteroatomhaltige Segmente, wobei R² und R⁴ vorzugsweise zweiwertige aliphatische oder aromatische Reste (CH₂)₀ mit 1
本发明涉及聚合物混合物及其生产工艺。在该工艺中,组分 B 在由一种或多种热塑性聚合物组成的组分 A 的熔体中发生反应。组分 B 由一种或多种化合物组成,其结构如下
B 组分转化为 A 组分,形成线性、支化或交联的高或低分子量聚合物。在 B 的结构中,X = NH₂、OH 或 N-取代的内酰胺,其活化的夺电子取代基 Y 的类型为
Y = CO、SO₂、R⁵P=O;R¹、R²、R⁴ 是二价或多价脂肪族、芳香族、杂环族或含杂原子的片段,其中 R² 和 R⁴ 最好是二价脂肪族或芳香族自由基 (CH₂)₀,1
Ester amide block copolymer and process for producing same
申请人:Tosoh Corporation
公开号:EP0712879A1
公开(公告)日:1996-05-22
An ester-amide block copolymer of the formula (1):
wherein R is an aromatic hydrocarbon group with 6-20 carbon atoms and G is a residue of an aliphatic polyester, an aliphatic polycarbonate, an aliphatic polyethercarbonate or a polyorganosiloxane, and having a weight average molecular weight of 30,000 - 1,000,000. This copolymer is advantageously prepared by polycondensing an activated acyl lactam-terminated aromatic amide with a diol by a bulk polymerization procedure in a molten state.
式 (1) 的酯-酰胺嵌段共聚物:
其中 R 是含有 6-20 个碳原子的芳香烃基团,G 是脂肪族聚酯、脂肪族聚碳酸酯、脂肪族聚醚碳酸酯或聚有机硅氧 烷的残留物,其重量平均分子量为 30,000 - 1,000,000。这种共聚物可以在熔融状态下,通过大体积聚合程序将活化的酰基内酰胺端芳香族酰胺与二元醇进行缩聚而制备。
Molecular reinforced polymeric composition
申请人:DSM N.V.
公开号:EP0994157A1
公开(公告)日:2000-04-19
The invention relates to a molecular reinforced polyamide composition comprising at least one linear or branched polyamide and a hyperbranched porous aromatic polymeric macromolecule which comprises rigid aromatic recurring units, the macromolecule also comprising at least one site on which at least one linear or branched polyamide chain is attached, the functional group optionally functionalized with a functional group that comprises an initiator molecule for an anionic polyamide polymerisation reaction. The composition according to the invention is homogeneous in the melt and shows at least the same improvement of mechanical properties (especially the modulus, strength and strain-at-break) as the composition according to the state of the art. The composition according to the invention is preferably obtained by copolymerizing the hyperbranched macromolecule with the monomers from which the polyamide is formed. If at least site of the hyperbranched porous aromatic polymeric macromolecule is functionalized with a functional group that comprised an initiator molecule for an anionic polyamide polymerisation reaction, the compatibility between the hyperbranched macromolecule and the polymer matrix is improved, such that the rate of dissolution and the amount of hyperbranched macromolecule that can be dissolved in the polyamide matrix is enhanced and hence, a composition with further improved mechanical properties is obtained.
本发明涉及一种分子增强聚酰胺组合物,该组合物包含至少一种线性或支化聚酰胺和一种超支化多孔芳香族聚合物大分子,该大分子包含刚性芳香族递归单元,该大分子还包含至少一个位点,在该位点上至少连接有一条线性或支化聚酰胺链,该位点上的官能团可选择官能化,该官能团包含用于阴离子聚酰胺聚合反应的引发剂分子。根据本发明的组合物在熔体中是均匀的,其机械性能(尤其是模量、强度和断裂应变)至少与根据现有技术的组合物有相同的改善。根据本发明的组合物最好是通过超支化大分子与形成聚酰胺的单体共聚而成。如果超支化多孔芳香族聚合大分子中至少有一部分被官能团官能化,该官能团包含用于阴离子聚酰胺聚合反应的引发剂分子,那么超支化大分子与聚合物基体之间的相容性就会得到改善,从而提高溶解速度和可溶解在聚酰胺基体中的超支化大分子的量,从而获得具有进一步改善的机械性能的组合物。
Ester-amide block copolymers and process for producing same
申请人:TOSOH CORPORATION
公开号:EP1088845A2
公开(公告)日:2001-04-04
An ester-amide block copolymer of the formula (1):
wherein R is an aromatic hydrocarbon group with 6-20 carbon atoms and G is a polyorganosiloxane residue, said copolymer having a weight average molecular weight of 30,000 - 1,000,000. This copolymer is prepared by polycondensing an activated acyl lactam-terminated aromatic amide with a diol by a bulk polymerization procedure in a molten state.
式(1)的酯-酰胺嵌段共聚物:
其中 R 是具有 6-20 个碳原子的芳香烃基团,G 是聚有机硅氧烷残基,所述共聚物的重量平均分子量为 30,000 - 1,000,000。这种共聚物是在熔融状态下,通过体聚合程序将活化的酰基内酰胺端芳香族酰胺与二元醇进行缩聚而制备的。
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