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JP2011208143A Polyimide film 有权
标题翻译：聚酰亚胺膜
公开(公告)号：JP2011208143A
公开(公告)日：2011-10-20
申请号：JP2011076174
申请日：2011-03-30
申请人： Kolon Industries Inc , コーロンインダストリーズインク
发明人： JEONG YOUNG HAN , PARK HYO JUN , JUNG HAK GEE
IPC分类号： C08G73/10 , C08J5/18
CPC分类号： C08L79/08 , C08G73/1039 , C08G73/1042
摘要： PROBLEM TO BE SOLVED: To provide a polyimide film having good transparency and also excellent thermal resistance so that it is useful in a transparent conductive film, TFT substrate, a flexible printing circuit substrate etc.SOLUTION: The polyimide film is obtained by casting an imidized product of a polyamic acid obtained from a polymerization of a diamine and an acid dianhydride, and has the polyimide content of not more than 70.0% based on the film weight, in which the absolute molecular weight of the polyimide is not more than 10×10g/mol as determined from following formula (1): R/K=MP(θ)-2AcMP(θ). Wherein the formula, Ris the excess Rayleigh ratio; and K=4πn(dn/dc)λN, in which nis a refractive index of a solvent; Nis Avogadro's number; and dn/dc is a specific refractive index increment, which is the value that the value of the change rate of refractive index according to the change rate of dilute solution concentration is differentiated and is measured within the range of 0.001 to 0.1 g/mL that is a section of concentration change when detecting a refractive index through injecting the polyimide film in a state of dilute solution in an organic solvent inside a flow cell of a differential refractometer; c is polymer concentration (g/mL) in the solution; M is a weight-average molecular weight (Mw) in the case of the polydisperse sample as a molar mass; Ais the second virial coefficient; and P(θ)=R/R.
摘要翻译：要解决的问题：提供具有良好的透明性和优异的耐热性的聚酰亚胺膜，使其可用于透明导电膜，TFT基板，柔性印刷电路基板等。解决方案：聚酰亚胺膜通过将酰亚胺化由二胺和酸二酐的聚合获得的聚酰胺酸的产物，并且聚酰亚胺的绝对分子量不大于10×10g，其聚酰亚胺含量基于膜重量不超过70.0％ / mol，由下式（1）确定：R / K = MP（θ）-2AcMP（θ）。其中公式中，Ris为瑞利倍数; 和K =4πn（dn / dc）λN，其中n是溶剂的折射率; Nis Avogadro的号码 dn / dc是比折射率增量，其是根据稀溶液浓度变化率的折射率变化率的值被分化并在0.001〜0.1g / mL的范围内测定的值，是通过在差示折光计的流动池内的有机溶剂中以稀溶液的状态注入聚酰亚胺膜来检测折射率的一部分浓度变化; c是溶液中的聚合物浓度（g / mL）; M是多分散样品的摩尔质量时的重均分子量（Mw）; 是第二维里系数; 和P（θ）= R / R。

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