Dna cross-links are produced mainly upon irradiation of dry dna or bacterial spores . DNA交鏈主要由照射于DNA或細(xì)菌芽胞引起。
The ratio of cross-links to branches may be varied by altering the incidence of chain transfer . 通過(guò)改變引入的鏈轉(zhuǎn)劑就可以改變交聯(lián)與支鏈的比例。
When termination occurs partly by disproportionation, the prepolymer chains in the product carry branches as well as cross-links . 當(dāng)終止反應(yīng)一部分是由歧化所起時(shí),則在產(chǎn)物中預(yù)聚物鏈不但帶有交聯(lián)也帶有支鏈。