有机硅材料
有機硅材料
유궤규재료
SILICONE MATERIAL
2014年
5期
349-353
,共5页
聚亚苯基硅氧烷%α,ω-二羟基聚(四甲基对硅亚苯基)硅氧烷%烯丙基%POSS%1,4-双(甲基氯硅基)苯%甲基二氯硅烷
聚亞苯基硅氧烷%α,ω-二羥基聚(四甲基對硅亞苯基)硅氧烷%烯丙基%POSS%1,4-雙(甲基氯硅基)苯%甲基二氯硅烷
취아분기규양완%α,ω-이간기취(사갑기대규아분기)규양완%희병기%POSS%1,4-쌍(갑기록규기)분%갑기이록규완
polyphenylene siloxane%α,ω-dihydroxyl poly (tetramethylsilphenylene )siloxane%allyl%POSS%1,4-bis(methylchlorosilyl)benzene%methyl dichloresilane
以α，ω-二羟基聚（四甲基对硅亚苯基）硅氧烷为起始原料，分别与1，4-双（甲基氯硅基）苯和甲基二氯硅烷反应，合成了两种带硅氢基的聚亚苯基硅氧烷P1和P2；然后，再与烯丙基七戊基低聚倍半硅氧烷（烯丙基七戊基POSS）进行硅氢加成反应，引入POSS侧基，合成了POSS-P1和POSS-P2。经1 H NMR和29 Si NMR分析证实得到了目标产物；GPC分析表明，两种聚合物经POSS改性后摩尔质量均增大，摩尔质量分布变宽；DSC和TGA分析表明，两种聚合物经POSS改性后熔点分别提高8.4℃和10.6℃，热质量损失率达到5％时的温度分别提高197℃和162℃，且均在400℃以上。
以α，ω-二羥基聚（四甲基對硅亞苯基）硅氧烷為起始原料，分彆與1，4-雙（甲基氯硅基）苯和甲基二氯硅烷反應，閤成瞭兩種帶硅氫基的聚亞苯基硅氧烷P1和P2；然後，再與烯丙基七戊基低聚倍半硅氧烷（烯丙基七戊基POSS）進行硅氫加成反應，引入POSS側基，閤成瞭POSS-P1和POSS-P2。經1 H NMR和29 Si NMR分析證實得到瞭目標產物；GPC分析錶明，兩種聚閤物經POSS改性後摩爾質量均增大，摩爾質量分佈變寬；DSC和TGA分析錶明，兩種聚閤物經POSS改性後鎔點分彆提高8.4℃和10.6℃，熱質量損失率達到5％時的溫度分彆提高197℃和162℃，且均在400℃以上。
이α，ω-이간기취（사갑기대규아분기）규양완위기시원료，분별여1，4-쌍（갑기록규기）분화갑기이록규완반응，합성료량충대규경기적취아분기규양완P1화P2；연후，재여희병기칠무기저취배반규양완（희병기칠무기POSS）진행규경가성반응，인입POSS측기，합성료POSS-P1화POSS-P2。경1 H NMR화29 Si NMR분석증실득도료목표산물；GPC분석표명，량충취합물경POSS개성후마이질량균증대，마이질량분포변관；DSC화TGA분석표명，량충취합물경POSS개성후용점분별제고8.4℃화10.6℃，열질량손실솔체도5％시적온도분별제고197℃화162℃，차균재400℃이상。
P1 and P2 poly(silphenylenesiloxane)s polymer with Si-H group were successfully obtained by hydrosilylation of α,ω-dihydroxyl poly (tetramethylsilphenylene )siloxane and 1 ,4-bis (methylchlorosilyl ) benzene or methyldichlorosilane,respectively. Then the polyhedral oligomeric silsesquioxanes (POSS)with allyl group were introduced into poly(silphenylenesiloxane)as the functional side-groups by hydrosilylation to get the polymers of POSS-P1 and POSS-P2 . 1 H NMR and 29 Si NMR analysis confirmed that the target polymer was obtained. GPC analysis showed that the molar mass of both polymers increased,and the molar mass distri-butions became broader after modified by POSS. DSC and TGA analysis showed that the melting points of two POSS-modified polymers increased by 8. 4℃ and 10. 6 ℃,respectively,and the temperatures (the mass loss rate of 5%)increased to 197 ℃ and 162 ℃ respectively,all above 400 ℃.
