本文探討用作熱固性樹脂抗收縮劑及增韌劑之具核殼型結構(CSS)高分子接枝之熱還原氧化石墨烯的合成，其對低收縮乙烯基酯樹脂在聚合固化後之樣品微觀型態結構、體積收縮特性、機械性質及導熱導電的影響。

這些核殼型結構(CSS)，以TRGO-polymer標示之，係以氧化石墨烯(GO)經由熱還原形成之熱還原氧化石墨烯(TRGO)為核心及有機高分子為外殼，以Z支撐的可逆加成-斷裂鏈轉移聚合法(RAFT)，利用S-Benzyl S'-trimethoxysilylpropyl trithiocarbonate (BTPT)作為可偶合的RAFT鏈轉移試劑合成而得。其中，氧化石墨烯(GO)是以modified Hummers 方法將天然石墨氧化合成。熱還原氧化石墨烯(TRGO)則是將氧化石墨烯放入高溫爐中，在1050℃下，以熱還原法製備而得。TRGO -polymer核殼型結構的高分子外殼為丙烯酸甲酯(MA)與甲基丙烯酸環丙氧烷酯(GMA)的共聚合物(poly(MA-co-GMA))、及聚丙烯酸丁酯(BA)與丙烯酸甲酯(MA)及甲基丙烯酸環丙氧烷酯(GMA)的共聚合物之團聯共聚合物(PBA-b-poly(MA-co-GMA))。

BTPT、GO、TRGO及TRGO-Polymer的結構，吾人以FTIR、1H-NMR、GPC、TGA及XRD鑑定之。本文中，吾人亦探討TRGO-Polymer對苯乙烯(St)/乙烯基酯(VER)/TRGO-Polymer之三成分系統於120℃恆溫聚合固化後之微觀型態結構(以SEM、TEM鑑定)、體積收縮、機械性質、導熱及導電性質。

Synthesis of polymer grafted graphene oxide with core-shell structure (CSS) as low-profile additives (LPA) and tougheners for thermoset resins, and their effects on the cured sample morphology, volume shrinkage characteristics and mechanical properties and thermal and electrical conductivities for low-shrink vinyl ester resins (VER) during the cure were investigated.

These CSS designated as TRGO-polymer, which contained thermal reduced graphene oxide(TRGO) as the core and organic polymer as the shell, were synthesized by the Z supported reversible addition-fragmentation chain transfer (RAFT) graft polymerization using S-Benzyl S'-trimethoxysilyl propyl trithio-carbonate (BTPT) as the coupable RAFT chain transfer agent (CTA). The graphene oxide (GO) was synthesized from natural graphite powder by a modified Hummers method. Thermal reduced graphene oxide (TRGO) was obtained by placing the graphene oxide in a high temperature furnace at 1050 ° C by a thermal reduction method.The grafted polymer as the shell structure of the TRGO-polymer was made from copolymer of MA and glycidyl methacrylate (poly(MA-co-GMA)), and poly(butylacrylate)-block- poly(methylacrylate-co-glycidyl methacrylate) (PBA-block-poly(MA-co-GMA)).

Structure characterizations of BTPT, GO, TRGO,and TRGO-polymer have been performed by using FTIR, 1H-NMR, 13C-NMR, GPC, TGA and XRD. In this work, the effects of TRGO-polymer on the volume shrinkage characteristics and mechanical properties and thermal and electrical conductivities of the styrene(St)/ vinyl ester(VER)/ TRGO-polymer ternary systems during the cure have also been explored.

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