【正文】 可通過共混合金提高ABS的耐熱性；改善PP的強度和彎曲模量，用作耐熱阻燃材料用作半滲透材料，過濾腐蝕性物質(zhì)還可做機械零部件，如齒輪、照相機殼等等。隨著加工應(yīng)用研究的深入，可開拓更多的應(yīng)用領(lǐng)域。如上所述，sPS是一種正在開發(fā)中的具有優(yōu)異特性和潛在應(yīng)用市場的新型工程塑料。隨著茂金屬催化劑研究的深人，工業(yè)化已有了堅實的基礎(chǔ)。價格性能綜合優(yōu)勢很有可能使它成為工程塑料系列中的一個新成員。正是由于有著廉價的原料和優(yōu)良的性能，有關(guān)sPS的合成和加工應(yīng)用的研究越來越受到人們的重視。綜上所述，間規(guī)聚苯乙烯特點突出，其共混物作為工程塑料在電子電器、汽車部件、特種纖維和包裝材料等方面有廣泛的應(yīng)用前景。對苯乙烯的間規(guī)聚合研究在催化劑和聚合工藝研究方面已經(jīng)取得了很大的進展。然而，sPS畢竟是一種全新的塑料品種，無論是在催化劑、聚合條件與方法、生產(chǎn)工藝研究，還是在應(yīng)用性能研究等方面距完全商品化還有一段距離。筆者認為sPS商品化除了其工藝問題之外，它的性能和應(yīng)用研究更為重要。參考文獻[1]Ishihara N, Seimiya T, Kuramoto M, Hoi M. Crystalline syndiotactic polystyrene[J]. Macromolecules, 1986, 19(3): 2464~2465.[2]Po R, Cardi N. Synthesis of syndiotactic polystyrene: reaction mechanisms and catalysis[J]. Prog Polym Sci, 1996, 21(4): 47~88.[3]Tomotsu N, Ishihara N, Newman TH, Malanga MT. Syndiospecific polymerization of styrene[J]. Mol Catal, 1998,12(8): 167~190.[4]Malanga M. Syndiotactic polystyrene materials[J]. Adv Mater, 2008, 12(18): 69~72.[5]Schellenberg J, Tomotsu N. Syndiotactic polystyrene catalysts and polymerization[J]. Prog Polym Sci, 2010, 27(19): 25~82.[6]Amin SB, Marks T J. Versatile pathways for in situ polyolefin functionalization with heteroatoms: catalytic chain transfer[J]. Angew Chem, 2008,4(7): 2~22.[7]Harder S, Feil F, Knoll K. Novel calcium halfsandwich plexes for the living and stereo selective polymerization of styrene[J]. Angew Chem, 2001,40(42): 61~84.[8]Boffa LS, Novak BM. Copolymerization of polar monomers with olefins using transitionmetal plexes[J]. Chem Rev, 2004,100(14): 79~93.[9]Chung TC. Synthesis of functional poly olefins copolymer via graft and block structures[J]. Prog Polym Sci, 2006, 27(8): 39~85.[10]Boan N K, Hillmeyer MA. Postpolymerization functionalization of Poly olefins[J]. Chem Soc Rev 2008, 34(26): 7~75.[11]Dong JY, Hu Y. Design and synthesis of structurally welldefined functional poly olefins via transition metalmediated olefin polymerization chemistry[J]. Coord Chem Rev, 2008, 25(10): 47~65.[12]Lopez RC, D’ Agosto F, Boisson C. Synthesis of welldefined polymer architectures by successive catalytic olefin polymerization and living/controlled polymerization reactions[J]. Prog Polym Sci, 2009, 32(4): 19~54.[13]Drent E, Budzelaar PHM. Palladium catalyzed alternating copolymerization of alkenes and carbon monoxide[J]. Chem Rev, 1996, 96(6): 63~81.[14]Jensen TR, Yoon SC, Dash AK, Luo L, Marks T J. Organotitanium mediated stereoselective coordinative/insertive homo polymerizations and co polymerizations of styrene and methyl methacrylate[J]. Am Chem Soc, 2010, 125(144): 82~94.[15]Cunningham ID, Fassihi K. The cyclopentadienyltitanium trichloride /MAO catalysed polymer isation of methyl acrylate and copolymerization with styrene and isoprene[J]. Polym Bull, 2009, 53(3): 59~65.[16]Longo P, Grassi A. Copolymerization of styrene and ethylene in the presence of different syndio specific catalysts[J]. Makromol Chem, 1990, 191(23): 87~96.[17]Aaltonen P, Seppala J, Matilainen L, Leskela M. Polymerization of a styrene and ethylene mixture with a trichloro titanium/methy laluminoxane catalyst system[J]. Macromolecules,1994, 27(31): 36~88.[18]Pellecchia C, Pappalardo D, D’Arco M, Zambelli A. Alternatingethylene–styrene copolymerization with a methylaluminoxanefree halftitanocene catalyst[J]. Macromolecules 1996, 29(11): 58~62.[19]Oliva L, Izzo L, Longo P. Copolymerization of ethylene and styrene to anearlyalternating crystalline copolymer[J]. Makromol Rapid Commun1996,17(74): 5~8.[20]Sernetz FG, Muelhaupt R, Amor F, Eberle T, Okuda J. Copolymerization of ethene with styrene using different methylalumoxane activated halfsandwich plexes[J]. Polym Sci Polym Chem, 2005, 35(15): 71~89.[21]Arai T, Ohtsu S, Suzuki S, Stereoregular. Bernoullian copolymerization of styrene and ethylene by bridged metallocene catalysts[J]. Macromol Rapid Commun, 1998,19(3): 27~31.[22]Oliva L, Mazza S, Longo P. Copolymerization of ethylene and styrene with monocyclopentadienyltitanium trichloride/ methylalunoxane catalyst[J]. Macromol Chem Phys, 1996,19(71): 15~22.[23]Rodrigues AS, Carpentier J F. Groups 3 and 4 singlesite catalysts for styrene–ethylene and styrene–olefin copolymerization[J]. Coord Chem Rev, 2009, 252(21): 37~54.[24]Grassi A, Caprio M, Zambelli A, Bowen D E. Synthesis and characterization of syndiotactic styreneethylene block copolymers[J]. Macromolecules, 2010, 33(81): 30~59.[25]Luo Y, Baldamus J, Hou Z. Scandium halfmetallocenecatalyzed syndiospecific styrene polymerization and styrene–ethylene copolymerization: unprecedented incorporation of syndiotactic styrene–styrene sequences in styrene–ethylene copolymers[J]. Am Chem Soc, 2004, 126(139): 10~17.[26]Hou Z, Luo Y, Li X. Cationic rare earth metal alkyls as novel catalysts for olefin polymerization and copolymerization[J]. Organomet Chem,2009, 691(31): 14~21.[27]Rodriguez AS, Kirillov E, Lehman CW, Roisnel T, Vuillemin B, Razavi A, et al. Allyl ansaLanthanidocenes: Singleponent, singlesite catalysts for controlled syndiospecific styrene and styrene–ethylene(co)polymerization[J]. Chem Eur, 2009, 13(55): 48~65.[28]Li X, Hou Z. Scandiumcatalyzed copolymerization of ethylene with dicyclopentadiene and terpolymerization of ethylene, dicyclopentadiene, and styrene[J]. Macromolecules 2008, 38(67): 67~90.[29]Rodriguez AS, Kirillov E, Vuillemin B, Razavi A, Carpentier J F. Stereocontrolled styreneisoprene copolymerizationand and styreneisopreneethylene terpolymerization with a single ponent ansaallyl neodymocene catalyst[J]. Polymer, 2008, 49(203): 9~45.[30]Lin S, Wu Q, Chen R, Zhu F. Syntheses and characterization of polypropylene, polystyrene and their block copolymers with titanocene catalysts[J]. Macromol Symp, 2009, 195(63): 63~83.[31]Chen R, Wu Q, Zhu F, Lin S. Syndiotactic polystyrenebatactic polypropylene block copolymer alloy as a patibilizer for syndiotactic polystyrene/isotactic polypropylene blends[J]. Appl Polym Sci, 2009, 89(153): 596~605.[32]Rabagliati FM, Cancino