• Title/Summary/Keyword: poly(imidesiloxane)

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Preparation of Aminosiloxane-grafted Poly(imidesiloxane) Copolymer and its Morphology and Adhesive Properties in Film (아미노실록산이 그래프팅된 폴리(이미드실록산) 공중합체 제조와 필름 모폴로지 및 점착 특성 연구)

  • Lee, Ji Mok;Kwon, Eunjin;Lee, Sunyoung;Jung, Hyun Min
    • Polymer(Korea)
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    • v.37 no.4
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    • pp.547-552
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    • 2013
  • Polyimide (PI) containing carboxyl functional group was prepared and reacted with diaminosiloxane during high temperature film casting. The morphology of resulting film was observed by using transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDX), which revealed that globular 100 nm-sized PI domains and continuous polysiloxane phase were formed. X-ray photoelectron spectroscopy (XPS) study indicated that air-film interface mainly consisted of polysiloxane blocks. Poly(imidesiloxane) thin layer was thermostable until $400^{\circ}C$ and its pressure- sensitive adhesive property was retained up to $300^{\circ}C$. The comparative experiments revealed that grafting between carboxyl groups of polyimide and aminosiloxane was crucial for formation of microdomain structure and pressure-sensitive adhesive property.