CAJ | 학술논문

以占单体物质的量0.01%的低铜盐用量催化剂体系进行电子转移活化再生催化剂原子转移自由基聚合（ARGET ATRP），制备了丙烯酸丁酯、甲基丙烯酸甲酯和丙烯酸羟丙酯为单体的线形和六臂星形共聚物。采用折光指数-激光-黏度三检测联用GPC，1H NMR和DSC对聚合物的分子结构、共聚组成和玻璃化转变行为进行了研究。将聚合物配制成涂料用树脂溶液，流变行为研究表明星形聚合物溶液黏度最低。在高固含量时，星形聚合物降低黏度的优势更明显。在适合喷涂施工的黏度下，六臂星形共聚物比普通自由基聚合得到的商品化丙烯酸酯树脂的固含量可提高10%。采用异氰酸酯固化剂固化得到的漆膜性能测试表明，星形聚合物对应清漆的表干时间很短，同时力学性能达到良好水平。
이점단체물질적량0.01%적저동염용량최화제체계진행전자전이활화재생최화제원자전이자유기취합（ARGET ATRP），제비료병희산정지、갑기병희산갑지화병희산간병지위단체적선형화륙비성형공취물。채용절광지수-격광-점도삼검측련용GPC，1H NMR화DSC대취합물적분자결구、공취조성화파리화전변행위진행료연구。장취합물배제성도료용수지용액，류변행위연구표명성형취합물용액점도최저。재고고함량시，성형취합물강저점도적우세경명현。재괄합분도시공적점도하，륙비성형공취물비보통자유기취합득도적상품화병희산지수지적고함량가제고10%。채용이청산지고화제고화득도적칠막성능측시표명，성형취합물대응청칠적표간시간흔단，동시역학성능체도량호수평。
The copolymers of n-butyl acrylate, methyl methacrylate and 2-hydroxypropyl acrylate were prepared by activators regenerated by electron transfer atom transfer radical polymerization(ARGET ATRP)using the hexa-functional and mono-functional initiators and 0.01%low concentration of complex catalyst. The molecular structure, copolymer composition and glass transition behavior of the polymers were characterized by refractive index-multi angle laser light scattering-viscometer triple detection gel permeation chromatography, hydrogen proton nuclear resonance (1H NMR) and differential scanning calorimetry (DSC), respectively. The obtained polymers were formulated into solutions for coating. Rheology tests revealed that viscosity of star polymers was the lowest. The viscosity decreasing efficiency was more remarkable at high solids contents. Under suitable spray viscosity, the solid content of star copolymer increased by 10%compared with commercial acrylic resin obtained by conventional free radical polymerization. The tack-free time of varnish composed of star polymers and isocyanate curing agent was very short. The mechanical properties of coating film reached a good level.