公开(公告)号：US20060276613A1

公开(公告)日：2006-12-07

申请号：US11382832

申请日：2006-05-11

Applicant: Iskender Yilgor ,  Emel Yilgor ,  Derek Klinedinst ,  Garth Wilkes

Inventor： Iskender Yilgor ,  Emel Yilgor ,  Derek Klinedinst ,  Garth Wilkes

IPC: C08G18/48

CPC classification number: C08G18/4854 ,  C08G18/10 ,  C08G18/3228

Abstract: Novel segmented polyurethaneurea copolymers were synthesized using a poly(ethylene-butylene)glycol based soft segment. Dynamic mechanical analysis (DMA), small angle X-ray scattering (SAXS) and atomic force microscopy (AFM) established the presence of a microphase-separated structure in which hard microdomains are dispersed throughout a soft segment matrix. Wide angle X-ray scattering (WAXS) and differential scanning calorimetry (DSC) results suggest the materials are amorphous. Samples that are made with HMDI/DY and have hard segment contents in the range of 16-23 wt % surprisingly exhibit near-linear mechanical deformation behavior in excess of 600% elongation. They also show very high levels of recoverability even though their hysteresis is also considerable. The materials are both melt processable and solution processable.

Abstract translation: 使用聚（乙烯 - 丁烯）乙二醇基软链段合成新的分段聚氨酯脲共聚物。 动态力学分析（DMA），小角度X射线散射（SAXS）和原子力显微镜（AFM）建立了微相分离结构的存在，其中硬微区分散在整个软段基质中。 广角X射线散射（WAXS）和差示扫描量热法（DSC）结果表明材料是无定形的。 用HMDI / DY制成并且具有在16-23重量％范围内的硬链段含量的样品令人惊讶地表现出超过600％伸长率的近似线性的机械变形行为。 即使它们的滞后也是可观的，它们也显示出非常高水平的可恢复性。 材料均可熔融加工，溶液可加工。

公开(公告)号：US20050288476A1

公开(公告)日：2005-12-29

申请号：US11153896

申请日：2005-06-16

Applicant: Iskender Yilgor ,  Emel Yilgor ,  Garth Wilkes ,  Jignesh Sheth ,  Derek Klinedinst

Inventor： Iskender Yilgor ,  Emel Yilgor ,  Garth Wilkes ,  Jignesh Sheth ,  Derek Klinedinst

IPC: C08G18/00 ,  C08G18/08 ,  C08G18/48 ,  C08G18/50

CPC classification number: C08G18/0895 ,  C08G18/4854 ,  C08G18/5024

Abstract: A segmented copolymer can be produced without needing a chain extender. The conventional view that a chain extender was needed to construct a segmnented copolymer has been disproven. For example, by certain reactions of a diisocyanate with oligomeric and polymeric diols or diamines, segmented copolymers can be produced without needing a chain extender. Segmented copolymers not containing ethylene glycol, 1,4-butanediol and ethylene diamine can be produced.

Abstract translation: 可以生产不需要扩链剂的分段共聚物。 传统观点认为，需要增链剂来构建一种分段的共聚物，这一点已经被驳斥了。 例如，通过二异氰酸酯与低聚和聚合二醇或二胺的某些反应，可以生产不需要扩链剂的分段共聚物。 可以制备不含乙二醇，1,4-丁二醇和乙二胺的分段共聚物。