BIDIRECTIONAL SHAPE-MEMORY POLYMER, METHOD OF ITS PRODUCTION AND ITS USE
    4.
    发明授权
    BIDIRECTIONAL SHAPE-MEMORY POLYMER, METHOD OF ITS PRODUCTION AND ITS USE 有权
    双向形状记忆聚合物,方法ITS和使用

    公开(公告)号:EP2935413B1

    公开(公告)日:2016-08-03

    申请号:EP13814153.6

    申请日:2013-12-20

    IPC分类号: C08J3/24 B29C61/00

    摘要: The present invention relates to an article consisting of or comprising a bidirectional shape-memory polymer (bSMP), the bSMP comprising: first phase-segregated domains (AD) having a first transition temperature (Tt,AD) corresponding to a crystallization transition or glass transition of the first domains (AD), second phase-segregated domains (SD) having a second transition temperature (Tt,AD) corresponding to a crystallization transition or glass transition of the second domains (SD), the second transition temperature (Tt,SD) being higher than the first transition temperature (Tt,AD), and covalent or physical bonds cross-linking the polymer chains of the bSMP, and in this way interconnecting the first and second domains (AD, SD), wherein the second phase-separated domains (SD) form a skeleton which is at least partially embedded in the first phase-segregated domains (AD), and wherein polymer chain segments of the bSMP forming the first domains (AD) are substantially orientated in a common direction, such that the bSMP is able to undergo a reversible shape-shift between a first shape (A) at a first temperature (Thigh) and a second shape (B) at a second temperature (Tlow) upon variation of temperature between the first and second temperature (Thigh, Tlow) driven by the crystallization and melting or vitrification and melting of the first phase-separated domains (AD) and without application of an external stress, with Tlow

    BIDIRECTIONAL SHAPE-MEMORY POLYMER, METHOD OF ITS PRODUCTION AND ITS USE
    6.
    发明公开
    BIDIRECTIONAL SHAPE-MEMORY POLYMER, METHOD OF ITS PRODUCTION AND ITS USE 有权
    双向形状记忆聚合物,方法ITS和使用

    公开(公告)号:EP2935413A2

    公开(公告)日:2015-10-28

    申请号:EP13814153.6

    申请日:2013-12-20

    IPC分类号: C08J3/24 B29C61/00

    摘要: The present invention relates to an article consisting of or comprising a bidirectional shape-memory polymer (bSMP), the bSMP comprising: first phase-segregated domains (AD) having a first transition temperature (Tt,AD) corresponding to a crystallization transition or glass transition of the first domains (AD), second phase-segregated domains (SD) having a second transition temperature (Tt,AD) corresponding to a crystallization transition or glass transition of the second domains (SD), the second transition temperature (Tt,SD) being higher than the first transition temperature (Tt,AD), and covalent or physical bonds cross-linking the polymer chains of the bSMP, and in this way interconnecting the first and second domains (AD, SD), wherein the second phase-separated domains (SD) form a skeleton which is at least partially embedded in the first phase-segregated domains (AD), and wherein polymer chain segments of the bSMP forming the first domains (AD) are substantially orientated in a common direction, such that the bSMP is able to undergo a reversible shape-shift between a first shape (A) at a first temperature (Thigh) and a second shape (B) at a second temperature (Tlow) upon variation of temperature between the first and second temperature (Thigh, Tlow) driven by the crystallization and melting or vitrification and melting of the first phase-separated domains (AD) and without application of an external stress, with Tlow