Article
  • Preparation and Characteristics of Maleated Polyethylene Modified with Poly(dimethylsiloxane)
  • Lee BC, Kang DW
  • Poly(dimethylsiloxane) 변성 Maleated Polyethylene의 제조와 그 특성
  • 이병철, 강두환
Abstract
Quaternary ammonium salt terminated silane was prepared from aminopropyldimethylethoxysilane with methyliodide and ionized 7,7,8,8- tetracyanoquinodimethane (Li+TCNQ-) was prepared from TCNQ with methyliodide and lithium iodide. Quaternary ammonium salt silane-TCNQ adduct (ST) was prepared by reacting quaternary ammonium salt terminated silane with Li+TCNQ- solution. Poly(dimethylsiloxane)-ST adduct (PST) was prepared by condensation of α,ω-hydroxyl group terminated poly(dimethylsiloxane) (PDMS) with ST. Maleated polyethylene modified with PDMS (PST-g-MPE) was prepared by melt polymerization of maleated PE and PST in internal mixer and PST-g-MPE/carbon black (CB) and MPE/CB composites were prepared by compounding PST with MPE and PST-g-MPE, respectively. The thermal and mechanical properties of the composites were measured and dispersion characteristics of CB in matrix resins show that the dispersion of CB in PST-g-MPE/CB was better than that of MPE/CB composite.

3-Aminopropyldimethylethoxysilane(AS)과 methyliodide를 이용하여 4차 암모늄 실란을 제조하고 7,7,8,8-tetracyanoquinodimethane(TCNQ)과 methyliodide 및 요오드화 리튬을 이용하여 Li+TCNQ-를 제조하였다. 제조한 4차 암모늄 실란에 Li+TCNQ-를 가하여 4차 암모늄 실란-TCNQ adduct(ST)를 제조하고 이를 말단에 OH기를 갖는 poly(dimethylsiloxane)(PDMS)과 축합반응시켜 poly(dimethylsiloxane)-ST adduct(PST)를 제조하였다. PST 변성 말레화 폴리에틸렌(PST-g-MPE)은 말레화 폴리에틸렌과 PST를 internal mixer(Rheomix 600P)를 사용하여 용융중합으로 제조하였으며 여기에 카본블랙(CB)의 함량을 변화시켜 PST-g-MPE/CB 및 MPE/CB 복합체를 제조하였다. 제조한 복합체의 열적 특성을 측정한 결과 유사한 열분해 온도를 나타내었다. PST-g-MPE/CB 복합체의 인장강도는 카본블랙의 함량 증가에 따라 200∼308 MPa로 증가하였으며 모폴로지를 측정한 결과 MPE/CB 복합체보다 PST-g-MPE/CB 복합체의 경우에서 카본블랙의 분산이 보다 더 잘 이루어졌음을 확인하였다.

Keywords: quaternary ammonium salt silane; maleated polyethylene; 7,7,8,8-tetracyanoquinodimethane; carbon black

References
  • 1. Hamman GG, Phys. Rev., 106, 1358 (1957)
  •  
  • 2. Chekanov Y, Ohnogi R, Asai S, Sumita M, Polym. J., 30, 381 (1998)
  •  
  • 3. Andrich E, Philips Tech. Rev., 30, 170 (1969)
  •  
  • 4. Heywang W, Solid State Electron., 3, 51 (1961)
  •  
  • 5. Meyer J, Polym. Eng. Sci., 13, 462 (1973)
  •  
  • 6. Yi XS, Wu G, Ma D, J. Appl. Polym. Sci., 67(1), 131 (1998)
  •  
  • 7. Strumpler R, Maidorn G, Phyner J, J. Appl. Phys., 81, 6786 (1997)
  •  
  • 8. Huang ZZ, Yue R, Chan HLW, Choy CL, Polym. Compos., 19, 781 (1998)
  •  
  • 9. Kohler FUS Patent 3,243,753 (1996)
  •  
  • 10. Hall TJUS Patent 6,259,997 (2000)
  •  
  • 11. Breuer O, Tchoudakov R, Nakkis M, Siegmann A, J. Appl. Polym. Sci., 73, 1665 (1999)
  •  
  • 12. Chung KT, Sabo A, Pica AP, J. Appl. Phys., 53, 6867 (1982)
  •  
  • 13. Liu YW, Oshima K, Yamauchi T, Shimomura M, Miyauchi S, Synth. Met., 101, 451 (1999)
  •  
  • 14. Feng JY, Chan CM, Polymer, 41(19), 7279 (2000)
  •  
  • 15. Ohe K, Natio Y, Jpn. J. Appl. Phys., 10, 99 (1971)
  •  
  • 16. Tang H, Liu ZY, Piao JH, Chen XF, Lou YX, Li SH, J. Appl. Polym. Sci., 51(7), 1159 (1994)
  •  
  • 17. Park SJ, Kim JS, J. Colloid Interface Sci., 244(2), 336 (2001)
  •  
  • 18. Park SJ, Jin JS, J. Colloid Interface Sci., 242(1), 174 (2001)
  •  
  • 19. Allcock HR, Levin ML, Austin PE, Inorg. Chem., 25, 2281 (1986)
  •  
  • 20. Vygodskii YS, Churochkina NA, Panova TA, Fedotov YA, React. Funct. Polym., 30(1), 241 (1996)
  •  
  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2006; 30(3): 224-229

    Published online May 25, 2006

  • Received on Jan 11, 2006
  • Accepted on May 11, 2006