Relationships between structure, permeability and glass transition temperature of oligodimethylsiloxanyl substituted polymers
Relationships between structure, permeability and glass transition temperature of oligodimethylsiloxanyl substituted polymers
复制标题
低聚二甲基硅氧烷基取代聚合物的结构、渗透性和玻璃化转变温度之间的关系
DOI：
10.1016/s0376-7388(00)80315-4
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
Takayuki Sugisaka
中科院分区：
文献类型：
--
作者：
Y. Kawakami;Takayuki Sugisaka
Structurally isomeric oligodimethylsiloxanyl substituted polymers were synthesized, and relationships between the structure of the substituent and the glass transition temperature of the polymer and the permeability of oxygen and nitrogen through the film were studied. p]Polymers with branched substituents showed higher glass transition temperatures than those with straight substituents. Trimethylsiloxyl groups and siloxane linkages in the substituents played an essential role in determining the permeability and glass transition temperature of the polymer. However, permeability could not be explained only by the glass transition temperature of the polymer. The role of the substituents is discussed based on the spin-spin relaxation behavior of the polymers in the solid state.
