| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide: linear siloxane polymers having low viscosities, precise molecular weights and two distinct polymer termini; a method of producing such siloxane polymers; and an elastomer comprising such siloxane polymers. <P>SOLUTION: The linear siloxane polymer having one unsaturated group terminus and one hydride group terminal, wherein the siloxane polymer has a degree of polymerization greater than 6 and a ratio of unsaturated group termini to hydride group terminals is substantially 1:1. In the presence of catalysts, such as Pt<SP POS="POST">0</SP>complexes, these siloxanes undergo step-growth polymerization to form elastomers at temperatures below 150°C. <P>COPYRIGHT: (C)2013,JPO&INPIT |
