SYNTHESIS AND THERMAL PROPERTIES OF CARBON DIOXIDE-CYCLOHEXENE OXIDE COPOLYMERS

	SYNTHESIS AND THERMAL PROPERTIES OF CARBON DIOXIDE-CYCLOHEXENE OXIDE COPOLYMERS
	Li GF ; Qin YS ; Wang XH ; Zhao XJ ; Wang FS
刊名	acta polymerica sinica
	2010
期号	1 页码:107-113
关键词	PROPYLENE-OXIDE POLY(PROPYLENE CARBONATE) CATALYST CO2
ISSN号	1000-3304
通讯作者	li gf
中文摘要	cyclohexene oxide copolymer (pchc) with high molecular weight was synthesized using ternary rare earth metal coordinate catalyst (y(cl3coo)(3)-znet2-glycerine) the catalytic activity reached 11. 8 kg polymer/mole zn under optimal condition, the obtained pchc showed number average molecular weight (m-n) of 7. 0 x 10(4), with carbonate unit over 95%. the glass transition temperature (t-g) of pchc was between 110 degrees c and 120 degrees c, it increased with increasing m-n when m-n was below 8.5 x 10(4), and leveled between 119 degrees c and 120 degrees c when m-n was over 8.5 x 10(4). the highest t-g may be reached as 120 degrees c if the m-n of pchc is high enough, and the characteristic free volume constant k is 1. 91 x 10(5). the influence of molecular weight on thermal stability of pchc was investigated, raising molecular weight was beneficial for improving thermal stability of pchc, and a 60 degrees c increase of the onset degradation temperature was observed when m-n increased from 39. 9 x 10(3) to 93. 1 x 10(3). since the rare earth ternary catalyst changed to metal oxide (mainly zno) after polymerization and post-polymerization treatments, the influence of zn content on thermal stability of pchc was studied based on kissinger method, pchc with zn content below 5 x 10(-6) showed surface activation energy for thermal decomposition of 199. 9 kj/mol, whereas it decreased to 143. 9 kj/mol for pchc with zn content of 4400 x 10(-6). therefore, reducing zn content could improve the thermal stability of pchc.
收录类别	SCI收录期刊论文
语种	中文
WOS记录号	WOS:000276421000017
公开日期	2012-06-07
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/43811]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Li GF,Qin YS,Wang XH,et al. SYNTHESIS AND THERMAL PROPERTIES OF CARBON DIOXIDE-CYCLOHEXENE OXIDE COPOLYMERS[J]. acta polymerica sinica,2010(1):107-113.
APA	Li GF,Qin YS,Wang XH,Zhao XJ,&Wang FS.(2010).SYNTHESIS AND THERMAL PROPERTIES OF CARBON DIOXIDE-CYCLOHEXENE OXIDE COPOLYMERS.acta polymerica sinica(1),107-113.
MLA	Li GF,et al."SYNTHESIS AND THERMAL PROPERTIES OF CARBON DIOXIDE-CYCLOHEXENE OXIDE COPOLYMERS".acta polymerica sinica .1(2010):107-113.