STRUCTURE AND PROPERTIES OF POLY(P-XYLYLENE) COMPOSITES MADE BY ELECTROCHEMICAL AND VAPOR-DEPOSITION POLYMERIZATION
STRUCTURE AND PROPERTIES OF POLY(P-XYLYLENE) COMPOSITES MADE BY ELECTROCHEMICAL AND VAPOR-DEPOSITION POLYMERIZATION
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DOI：
10.1002/pc.750130510
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发表时间：
1992-10-01
影响因子：
5.2
通讯作者：
OLSEN, RA
中科院分区：
文献类型：
--
作者：
LI, H;MOSHONOV, A;OLSEN, RA
采用电化学聚合（ECP）和气相沉积聚合（VDP）两种不同的原位聚合工艺制备了聚对二甲苯（PPX）/碳纤维预浸丝束。用于ECP方法的单体是α，α ′-二溴-对二甲苯，并且二-对二甲苯是用于VDP方法的起始材料。通过红外光谱、广角X射线衍射、差示扫描量热、热重和扫描电子显微镜等一系列测试对这两种复合纤维预浸料进行了鉴定和比较。已经证实，通过两种不同的聚合方法获得的PPX样品在化学上基本相同。然而，由VDP工艺产生的纤维表面上的聚合物涂层比由ECP工艺产生的涂层光滑得多，ECP工艺产生多孔涂层。
Poly(para-xylylene)(PPX)/carbon fiber towpregs were produced by two different in-situ polymerization processes: Electrochemical polymerization (ECP) and vapor deposition polymerization (VDP). The monomer used for the ECP process was alpha,alpha'-dibromo-para-xylylene and di-para-xylylene was the starting material for the VDP process. A series of tests, including FTIR, WAXD, DSC, TG, and SEM were carried out to identify and compare these two composite towpregs. It has been confirmed that the PPX samples obtained by the two different polymerization processes were basically chemically identical. However, the polymer coating on the fiber surface produced by the VDP process was much smoother than that produced by the ECP process, which produced a porous coating.