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    • 2. 发明授权
    • Entanglement-inhibited macromolecules
    • 免疫抑制大分子
    • US5206303A
    • 1993-04-27
    • US634846
    • 1990-12-27
    • Mun-Fu TseAnthony J. DiasPrasadarao MekaKenneth O. McElrath
    • Mun-Fu TseAnthony J. DiasPrasadarao MekaKenneth O. McElrath
    • C08F290/00C08F291/00C08F299/00C08G81/00
    • C08F299/00C08F291/00C08G81/00
    • A grafted and/or functionalized macromolecule comprises entanglement-inhibited architecture wherein the polymer exhibits reduced melt viscosity. In one embodiment, the macromolecule comprises a polymer of an isoolefin having about 4 to about 7 carbon atom and a para-alkylstyrene, wherein a grafted macromonomer such as a terminally functionalized polystyryl chain of very narrow molecular weight distribution is attached to the para-alkyl group of the para-alkylstyrene such that entanglement of adjacent chains in the melt are inhibited. In addition to distributed macromonomer grafts, other functionality may be attached to the para-alkyl group of the para-alkylstyrene to introduce other desirable properties such as radiation curability. In another embodiment the macromolecule comprises a polymer of one or more simple olefinic monomers wherein a macromolecule is attached to pendent functionality and/or copolymerized into the polymer backbone. A particularly preferred macromonomer comprises a terminal norbornene functional group.
    • 接枝和/或官能化的大分子包括缠结抑制结构,其中聚合物表现出降低的熔体粘度。 在一个实施方案中,大分子包含具有约4至约7个碳原子的异烯烃聚合物和对 - 烷基苯乙烯,其中接枝的大分子单体如具有非常窄的分子量分布的末端官能化的聚苯乙烯基链连接到对位烷基 一组对位烷基苯乙烯,使得熔体中相邻链的缠结被抑制。 除了分散的大分子单体移植物之外,其它官能团可以连接到对烷基苯乙烯的对位烷基上以引入其它期望的性质,例如辐射固化性。 在另一个实施方案中,大分子包含一种或多种简单烯烃单体的聚合物,其中大分子连接至侧链官能团和/或共聚到聚合物主链中。 特别优选的大分子单体包括末端降冰片烯官能团。
    • 3. 发明授权
    • Entanglement-inhibited macromolecules
    • 缠结抑制大分子
    • US5294678A
    • 1994-03-15
    • US009692
    • 1993-01-27
    • Mun-Fu TseAnthony J. DiasPrasadarao MekaKenneth O. McElrath
    • Mun-Fu TseAnthony J. DiasPrasadarao MekaKenneth O. McElrath
    • C08F290/00C08F291/00C08F299/00C08G81/00C08F255/08C08F257/02
    • C08F299/00C08F291/00C08G81/00
    • A grafted and/or functionalized macromolecule comprises entanglement-inhibited architecture wherein the polymer exhibits reduced melt viscosity. In one embodiment, the macromolecule comprises a polymer of an isoolefin having about 4 to about 7 carbon atom and a para-alkylstyrene, wherein a grafted macromonomer such as a terminally functionalized polystyryl chain of very narrow molecular weight distribution is attached to the para-alkyl group of the para-alkylstyrene such that entanglement of adjacent chains in the melt are inhibited. In addition to distributed macromonomer grafts, other functionality may be attached to the para-alkyl group of the para-alkylstyrene to introduce other desirable properties such as radiation curability. In another embodiment the macromolecule comprises a polymer of one or more simple olefinic monomers wherein a macromolecule is attached to pendent functionality and/or copolymerized into the polymer backbone. A particularly preferred macromonomer comprises a terminal norbornene functional group.
    • 接枝和/或官能化的大分子包括缠结抑制结构,其中聚合物表现出降低的熔体粘度。 在一个实施方案中,大分子包含具有约4至约7个碳原子的异烯烃聚合物和对 - 烷基苯乙烯,其中接枝的大分子单体如具有非常窄的分子量分布的末端官能化的聚苯乙烯基链连接到对位烷基 一组对位烷基苯乙烯,使得熔体中相邻链的缠结被抑制。 除了分散的大分子单体移植物之外,其它官能团可以连接到对烷基苯乙烯的对位烷基上以引入其它期望的性质,例如辐射固化性。 在另一个实施方案中,大分子包含一种或多种简单烯烃单体的聚合物,其中大分子连接至侧链官能团和/或共聚到聚合物主链中。 特别优选的大分子单体包括末端降冰片烯官能团。