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、体積收縮特性及機械性質的影響。
這些核殼型結構(CSS)，以GO-polymer標示之，係以氧化石墨烯(GO)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，層間距為0.65nm的氧化石墨烯是以modified Hummers 方法將天然石墨氧化合成，而GO -polymer核殼型結構的高分子外殼為聚丙烯酸甲酯(PMA)、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))、丙烯酸丁酯與丙烯酸甲酯之團聯共聚合物(PBA-b-PMA)、或聚丙烯酸丁酯與丙烯酸甲酯(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))。
GO、BTPT、GO-Polymer的結構，吾人以FTIR、1H-NMR、13C-NMR、GPC、TGA鑑定之。本文中，吾人亦探討GO-Polymer對苯乙烯(St)/乙烯基酯(VER)/GO-Polymer之主成分系統於120℃聚合固化後之微觀型態結構、體積收縮及機械性質。

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 for low-shrink vinyl ester resins (VER) during the cure were investigated.
These CSS designated as GO-polymer, which contained graphene oxide(GO) 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. The grafted polymer as the shell structure of the GO-polymer was made from poly(methyl acrylate) (PMA), copolymer of MA and glycidyl methacrylate(poly(MA-co-GMA)),poly(butylacrylate)-block-poly(methyl acrylate) (PBA-b-PMA) or PBA-block-poly(MA-co-GMA).
Structure characterizations of BTPT, GO, and GO-polymer have been performed by using FTIR, 1H-NMR, 13C-NMR, GPC. In this work, the effects of GO-polymer on the volume shrinkage characteristics and mechanical properties of the styrene(St)/ vinyl ester(VER)/ SiO2-polymer or (GO-polymer) ternary systems during the cure have also been explored.

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