Cellulosic Graft Copolymer: Poly(methyl methacrylate) with Cellulose Side Chains
Cellulosic Graft Copolymer: Poly(methyl methacrylate) with Cellulose Side Chains
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DOI：
10.1021/bm900229g
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发表时间：
2009-08-01
影响因子：
6.2
通讯作者：
Nakatsubo, Fumiaki
中科院分区：
文献类型：
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作者：
Enomoto-Rogers, Yukiko;Kamitakahara, Hiroshi;Nakatsubo, Fumiaki
纤维素大单体N-（15-甲基丙烯酰氧五烷醇）-三- o -乙酰- β -纤维素胺（CTA-C15-MA (2)）；M-2)，数平均聚合度(DPn) = 13)，与甲基丙烯酸甲酯（MMA; M-1）共聚得到具有CTA侧链的纤维素共聚物PMMA-g-(CTA- c15) （3-A）。经多角度激光散射测定的绝对分子量（MALS; M-w,M-LS）， PMMA-g-(CTA-C15) （3-A）的MMA聚合度(X)和CTA-C15- ma (Y)分别为M-w，M-LS = 6.30 × 10(4), X = 4.14 × 10(2), Y = 3.86。将3-A脱乙酰化后，得到了具有纤维素侧链的接枝共聚物PMMA-g-（纤维素- cl 5） （3-H）。用差示扫描量热法（DSC）对共聚物3-A和3-H的热分析表明，少量的CTA和纤维素侧链会影响PMMA主链的热性能。
A Cellulose macromonomer, N-(15-methacryloyloxypentadecanoyl)-tri-O-acetyl-beta-cellulosylamine (CTA-C15-MA (2); M-2) with number averaged degree of polymerization (DPn) = 13), was copolymerized with methyl methacrylate (MMA; M-1) to give cellulosic copolymer with CTA side chains, PMMA-g-(CTA-C15) (3-A). An absolute molecular weight determined by multiangle laser light scattering (MALS; M-w,M-LS), degree of polymerization of MMA (X) and CTA-C15-MA (Y) of PMMA-g-(CTA-C15) (3-A) were determined to be M-w,M-LS = 6.30 x 10(4), X = 4.14 x 10(2), and Y = 3.86. Cellulose graft copolymer with cellulose side chains, PMMA-g-(cellulose-Cl 5) (3-H) was successfully obtained after deacetylation of the copolymer 3-A. Thermal analysis of copolymers 3-A and 3-H by means of differential scanning calorimetry (DSC) measurements revealed that a small amount of CTA and cellulose side chains affected thermal properties of the PMMA main chain.